Home / 252,754.28-378,861.68-126,145.20

Finding the Fourth Proportional to 252,754.28, 378,861.68 and 126,145.20

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Solution

The fourth proportional to 252,754.28, 378,861.68 and 126,145.20 is: 189,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,754.28 : 378,861.68 = 126,145.20 : x
  2. Step 2: Convert to fraction form
    252,754.28/378,861.68 = 126,145.20/x
  3. Step 3: Cross multiply
    252,754.28x = 378,861.68 × 126,145.20
  4. Step 4: Simplify right side
    252,754.28x = 47,791,581,765.21
  5. Step 5: Solve for x
    x = 47,791,581,765.21/252,754.28
  6. Step 6: Final answer
    x = 189,083.18

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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.