Home / 132,142.38-198,213.66-38,648.22

Finding the Fourth Proportional to 132,142.38, 198,213.66 and 38,648.22

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Solution

The fourth proportional to 132,142.38, 198,213.66 and 38,648.22 is: 57,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,142.38 : 198,213.66 = 38,648.22 : x
  2. Step 2: Convert to fraction form
    132,142.38/198,213.66 = 38,648.22/x
  3. Step 3: Cross multiply
    132,142.38x = 198,213.66 × 38,648.22
  4. Step 4: Simplify right side
    132,142.38x = 7,660,605,138.69
  5. Step 5: Solve for x
    x = 7,660,605,138.69/132,142.38
  6. Step 6: Final answer
    x = 57,972.36

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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.