Home / 172,135.92-237,481.20-126,921.18

Finding the Fourth Proportional to 172,135.92, 237,481.20 and 126,921.18

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Solution

The fourth proportional to 172,135.92, 237,481.20 and 126,921.18 is: 175,102.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,135.92 : 237,481.20 = 126,921.18 : x
  2. Step 2: Convert to fraction form
    172,135.92/237,481.20 = 126,921.18/x
  3. Step 3: Cross multiply
    172,135.92x = 237,481.20 × 126,921.18
  4. Step 4: Simplify right side
    172,135.92x = 30,141,394,131.82
  5. Step 5: Solve for x
    x = 30,141,394,131.82/172,135.92
  6. Step 6: Final answer
    x = 175,102.29

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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.