Home / 137,835.45-206,789.61-74,627.49

Finding the Fourth Proportional to 137,835.45, 206,789.61 and 74,627.49

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Solution

The fourth proportional to 137,835.45, 206,789.61 and 74,627.49 is: 111,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,835.45 : 206,789.61 = 74,627.49 : x
  2. Step 2: Convert to fraction form
    137,835.45/206,789.61 = 74,627.49/x
  3. Step 3: Cross multiply
    137,835.45x = 206,789.61 × 74,627.49
  4. Step 4: Simplify right side
    137,835.45x = 15,432,189,552.38
  5. Step 5: Solve for x
    x = 15,432,189,552.38/137,835.45
  6. Step 6: Final answer
    x = 111,960.96

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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.