Finding the Fourth Proportional to 115,000.75, 172,502.68 and 36,114.99
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Solution
The fourth proportional to 115,000.75, 172,502.68 and 36,114.99 is: 54,172.97
Step by Step Solution
- Step 1: Write the proportion equation
115,000.75 : 172,502.68 = 36,114.99 : x - Step 2: Convert to fraction form
115,000.75/172,502.68 = 36,114.99/x - Step 3: Cross multiply
115,000.75x = 172,502.68 × 36,114.99 - Step 4: Simplify right side
115,000.75x = 6,229,932,563.17 - Step 5: Solve for x
x = 6,229,932,563.17/115,000.75 - Step 6: Final answer
x = 54,172.97
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1.5x scale
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.