Home / 123,727.23-170,744.02-67,138.61

Finding the Fourth Proportional to 123,727.23, 170,744.02 and 67,138.61

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Solution

The fourth proportional to 123,727.23, 170,744.02 and 67,138.61 is: 92,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,727.23 : 170,744.02 = 67,138.61 : x
  2. Step 2: Convert to fraction form
    123,727.23/170,744.02 = 67,138.61/x
  3. Step 3: Cross multiply
    123,727.23x = 170,744.02 × 67,138.61
  4. Step 4: Simplify right side
    123,727.23x = 11,463,515,147.05
  5. Step 5: Solve for x
    x = 11,463,515,147.05/123,727.23
  6. Step 6: Final answer
    x = 92,651.51

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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.