$ perl -l - 2
  print @{
          {
            map {   /(.*?)\s*,/ and $1 => $_  }
           <>
          }
        }{ qw/  10.1 100.1 25.1 103.1  / }
__END__
10.1,D,5,6,5,8,9,8,12,23,36,6
100.1,A ,25, 36,56,89,45,36,56
25.1 ,B,232,565,65,56,56,48,25
103.1,C,25,5,6,9,4,5,56,889,9