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Finding the Fourth Proportional to 123,761.79, 170,791.44 and 67,173.17

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Solution

The fourth proportional to 123,761.79, 170,791.44 and 67,173.17 is: 92,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,761.79 : 170,791.44 = 67,173.17 : x
  2. Step 2: Convert to fraction form
    123,761.79/170,791.44 = 67,173.17/x
  3. Step 3: Cross multiply
    123,761.79x = 170,791.44 × 67,173.17
  4. Step 4: Simplify right side
    123,761.79x = 11,472,602,433.66
  5. Step 5: Solve for x
    x = 11,472,602,433.66/123,761.79
  6. Step 6: Final answer
    x = 92,699.07

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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.