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Finding the Fourth Proportional to 89,086.60, 133,500.30 and 75,867.40

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Solution

The fourth proportional to 89,086.60, 133,500.30 and 75,867.40 is: 113,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,086.60 : 133,500.30 = 75,867.40 : x
  2. Step 2: Convert to fraction form
    89,086.60/133,500.30 = 75,867.40/x
  3. Step 3: Cross multiply
    89,086.60x = 133,500.30 × 75,867.40
  4. Step 4: Simplify right side
    89,086.60x = 10,128,320,660.22
  5. Step 5: Solve for x
    x = 10,128,320,660.22/89,086.60
  6. Step 6: Final answer
    x = 113,690.73

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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.