Home / 139,194.38-208,789-44,423.80

Finding the Fourth Proportional to 139,194.38, 208,789 and 44,423.80

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Solution

The fourth proportional to 139,194.38, 208,789 and 44,423.80 is: 66,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,194.38 : 208,789 = 44,423.80 : x
  2. Step 2: Convert to fraction form
    139,194.38/208,789 = 44,423.80/x
  3. Step 3: Cross multiply
    139,194.38x = 208,789 × 44,423.80
  4. Step 4: Simplify right side
    139,194.38x = 9,275,200,778.20
  5. Step 5: Solve for x
    x = 9,275,200,778.20/139,194.38
  6. Step 6: Final answer
    x = 66,634.88

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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.