Finding the Fourth Proportional to 115,254.28, 172,959.18 and 45,124.84
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Solution
The fourth proportional to 115,254.28, 172,959.18 and 45,124.84 is: 67,717.70
Step by Step Solution
- Step 1: Write the proportion equation
115,254.28 : 172,959.18 = 45,124.84 : x - Step 2: Convert to fraction form
115,254.28/172,959.18 = 45,124.84/x - Step 3: Cross multiply
115,254.28x = 172,959.18 × 45,124.84 - Step 4: Simplify right side
115,254.28x = 7,804,755,324.03 - Step 5: Solve for x
x = 7,804,755,324.03/115,254.28 - Step 6: Final answer
x = 67,717.70
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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.