Home / 123,305.27-170,144.19-68,850.78

Finding the Fourth Proportional to 123,305.27, 170,144.19 and 68,850.78

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Solution

The fourth proportional to 123,305.27, 170,144.19 and 68,850.78 is: 95,004.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,305.27 : 170,144.19 = 68,850.78 : x
  2. Step 2: Convert to fraction form
    123,305.27/170,144.19 = 68,850.78/x
  3. Step 3: Cross multiply
    123,305.27x = 170,144.19 × 68,850.78
  4. Step 4: Simplify right side
    123,305.27x = 11,714,560,193.97
  5. Step 5: Solve for x
    x = 11,714,560,193.97/123,305.27
  6. Step 6: Final answer
    x = 95,004.54

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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.