Home / 83,844.10-125,618.52-78,849.54

Finding the Fourth Proportional to 83,844.10, 125,618.52 and 78,849.54

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Solution

The fourth proportional to 83,844.10, 125,618.52 and 78,849.54 is: 118,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,844.10 : 125,618.52 = 78,849.54 : x
  2. Step 2: Convert to fraction form
    83,844.10/125,618.52 = 78,849.54/x
  3. Step 3: Cross multiply
    83,844.10x = 125,618.52 × 78,849.54
  4. Step 4: Simplify right side
    83,844.10x = 9,904,962,517.48
  5. Step 5: Solve for x
    x = 9,904,962,517.48/83,844.10
  6. Step 6: Final answer
    x = 118,135.47

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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.