Finding the Fourth Proportional to 115,018.62, 172,516.53 and 36,130.74
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Solution
The fourth proportional to 115,018.62, 172,516.53 and 36,130.74 is: 54,192.53
Step by Step Solution
- Step 1: Write the proportion equation
115,018.62 : 172,516.53 = 36,130.74 : x - Step 2: Convert to fraction form
115,018.62/172,516.53 = 36,130.74/x - Step 3: Cross multiply
115,018.62x = 172,516.53 × 36,130.74 - Step 4: Simplify right side
115,018.62x = 6,233,149,891.13 - Step 5: Solve for x
x = 6,233,149,891.13/115,018.62 - Step 6: Final answer
x = 54,192.53
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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.