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Finding the Fourth Proportional to 141,950.84, 195,890.67 and 78,287.27

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Solution

The fourth proportional to 141,950.84, 195,890.67 and 78,287.27 is: 108,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,950.84 : 195,890.67 = 78,287.27 : x
  2. Step 2: Convert to fraction form
    141,950.84/195,890.67 = 78,287.27/x
  3. Step 3: Cross multiply
    141,950.84x = 195,890.67 × 78,287.27
  4. Step 4: Simplify right side
    141,950.84x = 15,335,744,793.32
  5. Step 5: Solve for x
    x = 15,335,744,793.32/141,950.84
  6. Step 6: Final answer
    x = 108,035.61

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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.