Home / 126,355.28-189,553.46-47,475.88

Finding the Fourth Proportional to 126,355.28, 189,553.46 and 47,475.88

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Solution

The fourth proportional to 126,355.28, 189,553.46 and 47,475.88 is: 71,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,355.28 : 189,553.46 = 47,475.88 : x
  2. Step 2: Convert to fraction form
    126,355.28/189,553.46 = 47,475.88/x
  3. Step 3: Cross multiply
    126,355.28x = 189,553.46 × 47,475.88
  4. Step 4: Simplify right side
    126,355.28x = 8,999,217,320.54
  5. Step 5: Solve for x
    x = 8,999,217,320.54/126,355.28
  6. Step 6: Final answer
    x = 71,221.54

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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.