Align rows comparing multiple columns

Hi,

I need to know if there is a way to align rows from multiple columns in excel. I have attached a sample spreadsheet if it helps to understand my question. Column A is my standard data (these are masses of peptides), Column B, C and D are experimental masses that I have from three experiments. I need to treat these questions routinely but I am frustrated to have to do this manually. I need your input and help.

I have read some post regarding this similar question, but mine is even more challenging: you probably already noticed that all my numbers have four decimal points so there is actually no identical numbers in any of the columns/rows. I need to align those numbers within a certain mass range: +/-0.2000 (ideal condition) to my standard data. And all of the columns have different number of rows.

Could someone tell me whether the task is possible by running a Macro? If so, how to solve?

Thanks a lot!