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Finding the Fourth Proportional to 115,877, 159,910.28 and 62,885

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Solution

The fourth proportional to 115,877, 159,910.28 and 62,885 is: 86,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,877 : 159,910.28 = 62,885 : x
  2. Step 2: Convert to fraction form
    115,877/159,910.28 = 62,885/x
  3. Step 3: Cross multiply
    115,877x = 159,910.28 × 62,885
  4. Step 4: Simplify right side
    115,877x = 10,055,957,957.80
  5. Step 5: Solve for x
    x = 10,055,957,957.80/115,877
  6. Step 6: Final answer
    x = 86,781.31

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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.