Finding the Fourth Proportional to 129,691.60, 194,623.80 and 59,534.80
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Solution
The fourth proportional to 129,691.60, 194,623.80 and 59,534.80 is: 89,341.86
Step by Step Solution
- Step 1: Write the proportion equation
129,691.60 : 194,623.80 = 59,534.80 : x - Step 2: Convert to fraction form
129,691.60/194,623.80 = 59,534.80/x - Step 3: Cross multiply
129,691.60x = 194,623.80 × 59,534.80 - Step 4: Simplify right side
129,691.60x = 11,586,889,008.24 - Step 5: Solve for x
x = 11,586,889,008.24/129,691.60 - Step 6: Final answer
x = 89,341.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.