Home / 132,327.28-198,461-38,840.32

Finding the Fourth Proportional to 132,327.28, 198,461 and 38,840.32

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Solution

The fourth proportional to 132,327.28, 198,461 and 38,840.32 is: 58,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,327.28 : 198,461 = 38,840.32 : x
  2. Step 2: Convert to fraction form
    132,327.28/198,461 = 38,840.32/x
  3. Step 3: Cross multiply
    132,327.28x = 198,461 × 38,840.32
  4. Step 4: Simplify right side
    132,327.28x = 7,708,288,747.52
  5. Step 5: Solve for x
    x = 7,708,288,747.52/132,327.28
  6. Step 6: Final answer
    x = 58,251.70

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1.5x scale

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.