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Finding the Fourth Proportional to 132,512.68, 198,770.46 and 39,020.20

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Solution

The fourth proportional to 132,512.68, 198,770.46 and 39,020.20 is: 58,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,512.68 : 198,770.46 = 39,020.20 : x
  2. Step 2: Convert to fraction form
    132,512.68/198,770.46 = 39,020.20/x
  3. Step 3: Cross multiply
    132,512.68x = 198,770.46 × 39,020.20
  4. Step 4: Simplify right side
    132,512.68x = 7,756,063,103.29
  5. Step 5: Solve for x
    x = 7,756,063,103.29/132,512.68
  6. Step 6: Final answer
    x = 58,530.72

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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.