Tolong bantuannya y beserta caranya y

480 / 120 = x / 40
4 = x / 40
x = 4 x 40
x = 160 cm

480/x = 150/40
480/x = 15/4
x = 480 / 15 / 4
x = 480 x 4 / 15
x = 128 N

semoga membantu!