Home / 137,358.06-206,113.64-74,176.85

Finding the Fourth Proportional to 137,358.06, 206,113.64 and 74,176.85

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Solution

The fourth proportional to 137,358.06, 206,113.64 and 74,176.85 is: 111,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,358.06 : 206,113.64 = 74,176.85 : x
  2. Step 2: Convert to fraction form
    137,358.06/206,113.64 = 74,176.85/x
  3. Step 3: Cross multiply
    137,358.06x = 206,113.64 × 74,176.85
  4. Step 4: Simplify right side
    137,358.06x = 15,288,859,155.78
  5. Step 5: Solve for x
    x = 15,288,859,155.78/137,358.06
  6. Step 6: Final answer
    x = 111,306.60

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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.