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Finding the Fourth Proportional to 139,717.86, 209,512.46 and 44,930.52

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Solution

The fourth proportional to 139,717.86, 209,512.46 and 44,930.52 is: 67,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,717.86 : 209,512.46 = 44,930.52 : x
  2. Step 2: Convert to fraction form
    139,717.86/209,512.46 = 44,930.52/x
  3. Step 3: Cross multiply
    139,717.86x = 209,512.46 × 44,930.52
  4. Step 4: Simplify right side
    139,717.86x = 9,413,503,549.63
  5. Step 5: Solve for x
    x = 9,413,503,549.63/139,717.86
  6. Step 6: Final answer
    x = 67,375.09

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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.