Finding the Fourth Proportional to 133,257.68, 183,899.40 and 72,831.68
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Solution
The fourth proportional to 133,257.68, 183,899.40 and 72,831.68 is: 100,509.80
Step by Step Solution
- Step 1: Write the proportion equation
133,257.68 : 183,899.40 = 72,831.68 : x - Step 2: Convert to fraction form
133,257.68/183,899.40 = 72,831.68/x - Step 3: Cross multiply
133,257.68x = 183,899.40 × 72,831.68 - Step 4: Simplify right side
133,257.68x = 13,393,702,252.99 - Step 5: Solve for x
x = 13,393,702,252.99/133,257.68 - Step 6: Final answer
x = 100,509.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.