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Finding the Fourth Proportional to 123,906.66, 170,999.66 and 70,192.12

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Solution

The fourth proportional to 123,906.66, 170,999.66 and 70,192.12 is: 96,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,906.66 : 170,999.66 = 70,192.12 : x
  2. Step 2: Convert to fraction form
    123,906.66/170,999.66 = 70,192.12/x
  3. Step 3: Cross multiply
    123,906.66x = 170,999.66 × 70,192.12
  4. Step 4: Simplify right side
    123,906.66x = 12,002,828,654.68
  5. Step 5: Solve for x
    x = 12,002,828,654.68/123,906.66
  6. Step 6: Final answer
    x = 96,869.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.