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Finding the Fourth Proportional to 143,752.82, 198,379.14 and 80,092.88

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Solution

The fourth proportional to 143,752.82, 198,379.14 and 80,092.88 is: 110,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,752.82 : 198,379.14 = 80,092.88 : x
  2. Step 2: Convert to fraction form
    143,752.82/198,379.14 = 80,092.88/x
  3. Step 3: Cross multiply
    143,752.82x = 198,379.14 × 80,092.88
  4. Step 4: Simplify right side
    143,752.82x = 15,888,756,654.52
  5. Step 5: Solve for x
    x = 15,888,756,654.52/143,752.82
  6. Step 6: Final answer
    x = 110,528.31

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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.