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Finding the Fourth Proportional to 123,939.07, 171,035.11 and 67,350.44

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Solution

The fourth proportional to 123,939.07, 171,035.11 and 67,350.44 is: 92,943.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,939.07 : 171,035.11 = 67,350.44 : x
  2. Step 2: Convert to fraction form
    123,939.07/171,035.11 = 67,350.44/x
  3. Step 3: Cross multiply
    123,939.07x = 171,035.11 × 67,350.44
  4. Step 4: Simplify right side
    123,939.07x = 11,519,290,425.72
  5. Step 5: Solve for x
    x = 11,519,290,425.72/123,939.07
  6. Step 6: Final answer
    x = 92,943.17

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1.5x scale

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.