Home / 140,976.96-194,550.17-77,310.56

Finding the Fourth Proportional to 140,976.96, 194,550.17 and 77,310.56

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Solution

The fourth proportional to 140,976.96, 194,550.17 and 77,310.56 is: 106,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,976.96 : 194,550.17 = 77,310.56 : x
  2. Step 2: Convert to fraction form
    140,976.96/194,550.17 = 77,310.56/x
  3. Step 3: Cross multiply
    140,976.96x = 194,550.17 × 77,310.56
  4. Step 4: Simplify right side
    140,976.96x = 15,040,781,231.49
  5. Step 5: Solve for x
    x = 15,040,781,231.49/140,976.96
  6. Step 6: Final answer
    x = 106,689.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.