Finding the Fourth Proportional to 133,110.18, 183,691.14 and 72,680.79
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Solution
The fourth proportional to 133,110.18, 183,691.14 and 72,680.79 is: 100,298.99
Step by Step Solution
- Step 1: Write the proportion equation
133,110.18 : 183,691.14 = 72,680.79 : x - Step 2: Convert to fraction form
133,110.18/183,691.14 = 72,680.79/x - Step 3: Cross multiply
133,110.18x = 183,691.14 × 72,680.79 - Step 4: Simplify right side
133,110.18x = 13,350,817,171.20 - Step 5: Solve for x
x = 13,350,817,171.20/133,110.18 - Step 6: Final answer
x = 100,298.99
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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.