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Finding the Fourth Proportional to 68,171.66, 102,098.78 and 65,806.97

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Solution

The fourth proportional to 68,171.66, 102,098.78 and 65,806.97 is: 98,557.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,171.66 : 102,098.78 = 65,806.97 : x
  2. Step 2: Convert to fraction form
    68,171.66/102,098.78 = 65,806.97/x
  3. Step 3: Cross multiply
    68,171.66x = 102,098.78 × 65,806.97
  4. Step 4: Simplify right side
    68,171.66x = 6,718,810,759.74
  5. Step 5: Solve for x
    x = 6,718,810,759.74/68,171.66
  6. Step 6: Final answer
    x = 98,557.24

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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.