Home / 126,961.32-175,217.94-81,747.32

Finding the Fourth Proportional to 126,961.32, 175,217.94 and 81,747.32

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Solution

The fourth proportional to 126,961.32, 175,217.94 and 81,747.32 is: 112,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,961.32 : 175,217.94 = 81,747.32 : x
  2. Step 2: Convert to fraction form
    126,961.32/175,217.94 = 81,747.32/x
  3. Step 3: Cross multiply
    126,961.32x = 175,217.94 × 81,747.32
  4. Step 4: Simplify right side
    126,961.32x = 14,323,597,010.92
  5. Step 5: Solve for x
    x = 14,323,597,010.92/126,961.32
  6. Step 6: Final answer
    x = 112,818.59

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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.