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Finding the Fourth Proportional to 107,489.70, 148,332.60 and 59,740.20

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Solution

The fourth proportional to 107,489.70, 148,332.60 and 59,740.20 is: 82,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,489.70 : 148,332.60 = 59,740.20 : x
  2. Step 2: Convert to fraction form
    107,489.70/148,332.60 = 59,740.20/x
  3. Step 3: Cross multiply
    107,489.70x = 148,332.60 × 59,740.20
  4. Step 4: Simplify right side
    107,489.70x = 8,861,419,190.52
  5. Step 5: Solve for x
    x = 8,861,419,190.52/107,489.70
  6. Step 6: Final answer
    x = 82,439.71

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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.