Home / 123,177.48-170,012.13-80,081.97

Finding the Fourth Proportional to 123,177.48, 170,012.13 and 80,081.97

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Solution

The fourth proportional to 123,177.48, 170,012.13 and 80,081.97 is: 110,530.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,177.48 : 170,012.13 = 80,081.97 : x
  2. Step 2: Convert to fraction form
    123,177.48/170,012.13 = 80,081.97/x
  3. Step 3: Cross multiply
    123,177.48x = 170,012.13 × 80,081.97
  4. Step 4: Simplify right side
    123,177.48x = 13,614,906,294.30
  5. Step 5: Solve for x
    x = 13,614,906,294.30/123,177.48
  6. Step 6: Final answer
    x = 110,530.81

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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.