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Finding the Fourth Proportional to 147,468.28, 220,125.84 and 126,542.79

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Solution

The fourth proportional to 147,468.28, 220,125.84 and 126,542.79 is: 188,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,468.28 : 220,125.84 = 126,542.79 : x
  2. Step 2: Convert to fraction form
    147,468.28/220,125.84 = 126,542.79/x
  3. Step 3: Cross multiply
    147,468.28x = 220,125.84 × 126,542.79
  4. Step 4: Simplify right side
    147,468.28x = 27,855,337,944.69
  5. Step 5: Solve for x
    x = 27,855,337,944.69/147,468.28
  6. Step 6: Final answer
    x = 188,890.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.