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Finding the Fourth Proportional to 139,579.62, 209,366.18 and 44,805.97

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Solution

The fourth proportional to 139,579.62, 209,366.18 and 44,805.97 is: 67,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,579.62 : 209,366.18 = 44,805.97 : x
  2. Step 2: Convert to fraction form
    139,579.62/209,366.18 = 44,805.97/x
  3. Step 3: Cross multiply
    139,579.62x = 209,366.18 × 44,805.97
  4. Step 4: Simplify right side
    139,579.62x = 9,380,854,780.09
  5. Step 5: Solve for x
    x = 9,380,854,780.09/139,579.62
  6. Step 6: Final answer
    x = 67,207.91

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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.