Jawabanmu

2014-02-28T18:44:59+07:00
X / 54 = 4 / 144
x = 4 x 54 / 144
x = 1,5 liter
4 liter = 144 km
jadi 4/144 = 1km | yang dicari 54 km jadi: 54 km = 54 x 4/144 = 1,5 liter
2014-02-28T18:46:31+07:00
Dikaliin silang aja 4 liter =144
                               x=54