Finding the Fourth Proportional to 115,330.60, 172,850.10 and 102,791.80
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Solution
The fourth proportional to 115,330.60, 172,850.10 and 102,791.80 is: 154,057.75
Step by Step Solution
- Step 1: Write the proportion equation
115,330.60 : 172,850.10 = 102,791.80 : x - Step 2: Convert to fraction form
115,330.60/172,850.10 = 102,791.80/x - Step 3: Cross multiply
115,330.60x = 172,850.10 × 102,791.80 - Step 4: Simplify right side
115,330.60x = 17,767,572,909.18 - Step 5: Solve for x
x = 17,767,572,909.18/115,330.60 - Step 6: Final answer
x = 154,057.75
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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.