Home / 137,516.86-206,279.61-42,747.54

Finding the Fourth Proportional to 137,516.86, 206,279.61 and 42,747.54

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Solution

The fourth proportional to 137,516.86, 206,279.61 and 42,747.54 is: 64,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,516.86 : 206,279.61 = 42,747.54 : x
  2. Step 2: Convert to fraction form
    137,516.86/206,279.61 = 42,747.54/x
  3. Step 3: Cross multiply
    137,516.86x = 206,279.61 × 42,747.54
  4. Step 4: Simplify right side
    137,516.86x = 8,817,945,879.66
  5. Step 5: Solve for x
    x = 8,817,945,879.66/137,516.86
  6. Step 6: Final answer
    x = 64,122.65

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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.