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Finding the Fourth Proportional to 139,701.85, 209,593.60 and 44,929.90

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Solution

The fourth proportional to 139,701.85, 209,593.60 and 44,929.90 is: 67,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,701.85 : 209,593.60 = 44,929.90 : x
  2. Step 2: Convert to fraction form
    139,701.85/209,593.60 = 44,929.90/x
  3. Step 3: Cross multiply
    139,701.85x = 209,593.60 × 44,929.90
  4. Step 4: Simplify right side
    139,701.85x = 9,417,019,638.31
  5. Step 5: Solve for x
    x = 9,417,019,638.31/139,701.85
  6. Step 6: Final answer
    x = 67,407.98

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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.