Home / 96,439.20-132,997.28-66,171.12

Finding the Fourth Proportional to 96,439.20, 132,997.28 and 66,171.12

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Solution

The fourth proportional to 96,439.20, 132,997.28 and 66,171.12 is: 91,255.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,439.20 : 132,997.28 = 66,171.12 : x
  2. Step 2: Convert to fraction form
    96,439.20/132,997.28 = 66,171.12/x
  3. Step 3: Cross multiply
    96,439.20x = 132,997.28 × 66,171.12
  4. Step 4: Simplify right side
    96,439.20x = 8,800,578,974.55
  5. Step 5: Solve for x
    x = 8,800,578,974.55/96,439.20
  6. Step 6: Final answer
    x = 91,255.21

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1.5x scale

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.