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Finding the Fourth Proportional to 123,365.39, 170,243.52 and 69,649.97

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Solution

The fourth proportional to 123,365.39, 170,243.52 and 69,649.97 is: 96,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,365.39 : 170,243.52 = 69,649.97 : x
  2. Step 2: Convert to fraction form
    123,365.39/170,243.52 = 69,649.97/x
  3. Step 3: Cross multiply
    123,365.39x = 170,243.52 × 69,649.97
  4. Step 4: Simplify right side
    123,365.39x = 11,857,456,060.69
  5. Step 5: Solve for x
    x = 11,857,456,060.69/123,365.39
  6. Step 6: Final answer
    x = 96,116.55

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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.