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Finding the Fourth Proportional to 93,610.20, 140,123.70 and 90,694.20

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Solution

The fourth proportional to 93,610.20, 140,123.70 and 90,694.20 is: 135,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,610.20 : 140,123.70 = 90,694.20 : x
  2. Step 2: Convert to fraction form
    93,610.20/140,123.70 = 90,694.20/x
  3. Step 3: Cross multiply
    93,610.20x = 140,123.70 × 90,694.20
  4. Step 4: Simplify right side
    93,610.20x = 12,708,406,872.54
  5. Step 5: Solve for x
    x = 12,708,406,872.54/93,610.20
  6. Step 6: Final answer
    x = 135,758.78

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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.