Home / 126,141.62-174,073.19-68,781.38

Finding the Fourth Proportional to 126,141.62, 174,073.19 and 68,781.38

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Solution

The fourth proportional to 126,141.62, 174,073.19 and 68,781.38 is: 94,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,141.62 : 174,073.19 = 68,781.38 : x
  2. Step 2: Convert to fraction form
    126,141.62/174,073.19 = 68,781.38/x
  3. Step 3: Cross multiply
    126,141.62x = 174,073.19 × 68,781.38
  4. Step 4: Simplify right side
    126,141.62x = 11,972,993,014.93
  5. Step 5: Solve for x
    x = 11,972,993,014.93/126,141.62
  6. Step 6: Final answer
    x = 94,917.07

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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.