Home / 132,406.20-198,614.10-38,921.40

Finding the Fourth Proportional to 132,406.20, 198,614.10 and 38,921.40

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Solution

The fourth proportional to 132,406.20, 198,614.10 and 38,921.40 is: 58,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,406.20 : 198,614.10 = 38,921.40 : x
  2. Step 2: Convert to fraction form
    132,406.20/198,614.10 = 38,921.40/x
  3. Step 3: Cross multiply
    132,406.20x = 198,614.10 × 38,921.40
  4. Step 4: Simplify right side
    132,406.20x = 7,730,338,831.74
  5. Step 5: Solve for x
    x = 7,730,338,831.74/132,406.20
  6. Step 6: Final answer
    x = 58,383.51

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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.