Respuesta :

Answer:

x = 98 mm

Step-by-step explanation:

129.2 / 68 = 57 / (x - 68)

Cross multiply

129.2(x - 68) = 68 * 57

129.2x - 8785.6 = 3876

129.2x = 12661.6

        x = 12661.6 / 129.2

        x = 98