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Finding the Fourth Proportional to 89,432.70, 134,149.05 and 88,266.30

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Solution

The fourth proportional to 89,432.70, 134,149.05 and 88,266.30 is: 132,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,432.70 : 134,149.05 = 88,266.30 : x
  2. Step 2: Convert to fraction form
    89,432.70/134,149.05 = 88,266.30/x
  3. Step 3: Cross multiply
    89,432.70x = 134,149.05 × 88,266.30
  4. Step 4: Simplify right side
    89,432.70x = 11,840,840,292.02
  5. Step 5: Solve for x
    x = 11,840,840,292.02/89,432.70
  6. Step 6: Final answer
    x = 132,399.45

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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.