Finding the Fourth Proportional to 97,728.12, 146,635.92 and 56,175.12
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Solution
The fourth proportional to 97,728.12, 146,635.92 and 56,175.12 is: 84,287.82
Step by Step Solution
- Step 1: Write the proportion equation
97,728.12 : 146,635.92 = 56,175.12 : x - Step 2: Convert to fraction form
97,728.12/146,635.92 = 56,175.12/x - Step 3: Cross multiply
97,728.12x = 146,635.92 × 56,175.12 - Step 4: Simplify right side
97,728.12x = 8,237,290,402.31 - Step 5: Solve for x
x = 8,237,290,402.31/97,728.12 - Step 6: Final answer
x = 84,287.82
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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.