Home / 137,372.33-206,117.75-74,179.86

Finding the Fourth Proportional to 137,372.33, 206,117.75 and 74,179.86

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Solution

The fourth proportional to 137,372.33, 206,117.75 and 74,179.86 is: 111,301.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,372.33 : 206,117.75 = 74,179.86 : x
  2. Step 2: Convert to fraction form
    137,372.33/206,117.75 = 74,179.86/x
  3. Step 3: Cross multiply
    137,372.33x = 206,117.75 × 74,179.86
  4. Step 4: Simplify right side
    137,372.33x = 15,289,786,023.96
  5. Step 5: Solve for x
    x = 15,289,786,023.96/137,372.33
  6. Step 6: Final answer
    x = 111,301.79

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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.