Finding the Fourth Proportional to 115,333.12, 172,940.42 and 52,118.99
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Solution
The fourth proportional to 115,333.12, 172,940.42 and 52,118.99 is: 78,151.71
Step by Step Solution
- Step 1: Write the proportion equation
115,333.12 : 172,940.42 = 52,118.99 : x - Step 2: Convert to fraction form
115,333.12/172,940.42 = 52,118.99/x - Step 3: Cross multiply
115,333.12x = 172,940.42 × 52,118.99 - Step 4: Simplify right side
115,333.12x = 9,013,480,020.58 - Step 5: Solve for x
x = 9,013,480,020.58/115,333.12 - Step 6: Final answer
x = 78,151.71
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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.