Question

153 inches to 19 feet

Answer 1

This is not really a complete problem statement.  All I can do is guess that y ou are to find the RATIO of 153 inches to 19 feet.   If that's correct, here's what to do:

153 inches                   1 foot                  153            51            3
--------------- = ---------------------------  =  -----------  = -------- = ---------   (answer)
  19 feet           [12 inches ]                     1428          476          28

Note that this is a ratio and has no units of measurement.