Home / 83,115.14-125,233.76-68,648.16

Finding the Fourth Proportional to 83,115.14, 125,233.76 and 68,648.16

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Solution

The fourth proportional to 83,115.14, 125,233.76 and 68,648.16 is: 103,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,115.14 : 125,233.76 = 68,648.16 : x
  2. Step 2: Convert to fraction form
    83,115.14/125,233.76 = 68,648.16/x
  3. Step 3: Cross multiply
    83,115.14x = 125,233.76 × 68,648.16
  4. Step 4: Simplify right side
    83,115.14x = 8,597,067,193.88
  5. Step 5: Solve for x
    x = 8,597,067,193.88/83,115.14
  6. Step 6: Final answer
    x = 103,435.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.