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Finding the Fourth Proportional to 105,536.97, 158,363.87 and 39,020.73

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Solution

The fourth proportional to 105,536.97, 158,363.87 and 39,020.73 is: 58,552.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,536.97 : 158,363.87 = 39,020.73 : x
  2. Step 2: Convert to fraction form
    105,536.97/158,363.87 = 39,020.73/x
  3. Step 3: Cross multiply
    105,536.97x = 158,363.87 × 39,020.73
  4. Step 4: Simplify right side
    105,536.97x = 6,179,473,910.58
  5. Step 5: Solve for x
    x = 6,179,473,910.58/105,536.97
  6. Step 6: Final answer
    x = 58,552.69

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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.