Home / 125,264.25-172,769.25-107,831.10

Finding the Fourth Proportional to 125,264.25, 172,769.25 and 107,831.10

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Solution

The fourth proportional to 125,264.25, 172,769.25 and 107,831.10 is: 148,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,264.25 : 172,769.25 = 107,831.10 : x
  2. Step 2: Convert to fraction form
    125,264.25/172,769.25 = 107,831.10/x
  3. Step 3: Cross multiply
    125,264.25x = 172,769.25 × 107,831.10
  4. Step 4: Simplify right side
    125,264.25x = 18,629,898,273.68
  5. Step 5: Solve for x
    x = 18,629,898,273.68/125,264.25
  6. Step 6: Final answer
    x = 148,724.78

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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.