Home / 139,814.19-209,752.42-51,067.55

Finding the Fourth Proportional to 139,814.19, 209,752.42 and 51,067.55

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Solution

The fourth proportional to 139,814.19, 209,752.42 and 51,067.55 is: 76,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,814.19 : 209,752.42 = 51,067.55 : x
  2. Step 2: Convert to fraction form
    139,814.19/209,752.42 = 51,067.55/x
  3. Step 3: Cross multiply
    139,814.19x = 209,752.42 × 51,067.55
  4. Step 4: Simplify right side
    139,814.19x = 10,711,542,195.97
  5. Step 5: Solve for x
    x = 10,711,542,195.97/139,814.19
  6. Step 6: Final answer
    x = 76,612.70

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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.