Home / 132,139.38-198,209.16-38,645.22

Finding the Fourth Proportional to 132,139.38, 198,209.16 and 38,645.22

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Solution

The fourth proportional to 132,139.38, 198,209.16 and 38,645.22 is: 57,967.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,139.38 : 198,209.16 = 38,645.22 : x
  2. Step 2: Convert to fraction form
    132,139.38/198,209.16 = 38,645.22/x
  3. Step 3: Cross multiply
    132,139.38x = 198,209.16 × 38,645.22
  4. Step 4: Simplify right side
    132,139.38x = 7,659,836,594.22
  5. Step 5: Solve for x
    x = 7,659,836,594.22/132,139.38
  6. Step 6: Final answer
    x = 57,967.86

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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.