Finding the Fourth Proportional to 133,125.28, 183,711.45 and 72,695.74
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Solution
The fourth proportional to 133,125.28, 183,711.45 and 72,695.74 is: 100,319.34
Step by Step Solution
- Step 1: Write the proportion equation
133,125.28 : 183,711.45 = 72,695.74 : x - Step 2: Convert to fraction form
133,125.28/183,711.45 = 72,695.74/x - Step 3: Cross multiply
133,125.28x = 183,711.45 × 72,695.74 - Step 4: Simplify right side
133,125.28x = 13,355,039,804.22 - Step 5: Solve for x
x = 13,355,039,804.22/133,125.28 - Step 6: Final answer
x = 100,319.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.