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Finding the Fourth Proportional to 95,757.75, 143,763.80 and 81,807.39

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Solution

The fourth proportional to 95,757.75, 143,763.80 and 81,807.39 is: 122,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,757.75 : 143,763.80 = 81,807.39 : x
  2. Step 2: Convert to fraction form
    95,757.75/143,763.80 = 81,807.39/x
  3. Step 3: Cross multiply
    95,757.75x = 143,763.80 × 81,807.39
  4. Step 4: Simplify right side
    95,757.75x = 11,760,940,845.45
  5. Step 5: Solve for x
    x = 11,760,940,845.45/95,757.75
  6. Step 6: Final answer
    x = 122,819.73

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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.