Finding the Fourth Proportional to 135,125.62, 186,472.13 and 74,697.80
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Solution
The fourth proportional to 135,125.62, 186,472.13 and 74,697.80 is: 103,082.28
Step by Step Solution
- Step 1: Write the proportion equation
135,125.62 : 186,472.13 = 74,697.80 : x - Step 2: Convert to fraction form
135,125.62/186,472.13 = 74,697.80/x - Step 3: Cross multiply
135,125.62x = 186,472.13 × 74,697.80 - Step 4: Simplify right side
135,125.62x = 13,929,056,566.46 - Step 5: Solve for x
x = 13,929,056,566.46/135,125.62 - Step 6: Final answer
x = 103,082.28
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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.