Home / 141,898.80-195,821.76-78,234.96

Finding the Fourth Proportional to 141,898.80, 195,821.76 and 78,234.96

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Solution

The fourth proportional to 141,898.80, 195,821.76 and 78,234.96 is: 107,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,898.80 : 195,821.76 = 78,234.96 : x
  2. Step 2: Convert to fraction form
    141,898.80/195,821.76 = 78,234.96/x
  3. Step 3: Cross multiply
    141,898.80x = 195,821.76 × 78,234.96
  4. Step 4: Simplify right side
    141,898.80x = 15,320,107,560.73
  5. Step 5: Solve for x
    x = 15,320,107,560.73/141,898.80
  6. Step 6: Final answer
    x = 107,965.03

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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.