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Finding the Fourth Proportional to 123,561.77, 185,350.50 and 43,589.84

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Solution

The fourth proportional to 123,561.77, 185,350.50 and 43,589.84 is: 65,387.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,561.77 : 185,350.50 = 43,589.84 : x
  2. Step 2: Convert to fraction form
    123,561.77/185,350.50 = 43,589.84/x
  3. Step 3: Cross multiply
    123,561.77x = 185,350.50 × 43,589.84
  4. Step 4: Simplify right side
    123,561.77x = 8,079,397,712.17
  5. Step 5: Solve for x
    x = 8,079,397,712.17/123,561.77
  6. Step 6: Final answer
    x = 65,387.52

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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.