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Finding the Fourth Proportional to 95,081.80, 142,449.90 and 77,456.20

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Solution

The fourth proportional to 95,081.80, 142,449.90 and 77,456.20 is: 116,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,081.80 : 142,449.90 = 77,456.20 : x
  2. Step 2: Convert to fraction form
    95,081.80/142,449.90 = 77,456.20/x
  3. Step 3: Cross multiply
    95,081.80x = 142,449.90 × 77,456.20
  4. Step 4: Simplify right side
    95,081.80x = 11,033,627,944.38
  5. Step 5: Solve for x
    x = 11,033,627,944.38/95,081.80
  6. Step 6: Final answer
    x = 116,043.53

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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.