Finding the Fourth Proportional to 131,307.92, 181,207.08 and 71,691.92
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Solution
The fourth proportional to 131,307.92, 181,207.08 and 71,691.92 is: 98,936.02
Step by Step Solution
- Step 1: Write the proportion equation
131,307.92 : 181,207.08 = 71,691.92 : x - Step 2: Convert to fraction form
131,307.92/181,207.08 = 71,691.92/x - Step 3: Cross multiply
131,307.92x = 181,207.08 × 71,691.92 - Step 4: Simplify right side
131,307.92x = 12,991,083,482.79 - Step 5: Solve for x
x = 12,991,083,482.79/131,307.92 - Step 6: Final answer
x = 98,936.02
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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.