Home / 95,340.20-143,162.98-78,663.92

Finding the Fourth Proportional to 95,340.20, 143,162.98 and 78,663.92

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Solution

The fourth proportional to 95,340.20, 143,162.98 and 78,663.92 is: 118,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,340.20 : 143,162.98 = 78,663.92 : x
  2. Step 2: Convert to fraction form
    95,340.20/143,162.98 = 78,663.92/x
  3. Step 3: Cross multiply
    95,340.20x = 143,162.98 × 78,663.92
  4. Step 4: Simplify right side
    95,340.20x = 11,261,761,205.68
  5. Step 5: Solve for x
    x = 11,261,761,205.68/95,340.20
  6. Step 6: Final answer
    x = 118,121.85

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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.