Finding the Fourth Proportional to 126,753.24, 174,760.68 and 81,351.12
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Solution
The fourth proportional to 126,753.24, 174,760.68 and 81,351.12 is: 112,162.63
Step by Step Solution
- Step 1: Write the proportion equation
126,753.24 : 174,760.68 = 81,351.12 : x - Step 2: Convert to fraction form
126,753.24/174,760.68 = 81,351.12/x - Step 3: Cross multiply
126,753.24x = 174,760.68 × 81,351.12 - Step 4: Simplify right side
126,753.24x = 14,216,977,049.96 - Step 5: Solve for x
x = 14,216,977,049.96/126,753.24 - Step 6: Final answer
x = 112,162.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.