Home / 126,721.76-174,891.96-83,150.96

Finding the Fourth Proportional to 126,721.76, 174,891.96 and 83,150.96

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Solution

The fourth proportional to 126,721.76, 174,891.96 and 83,150.96 is: 114,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,721.76 : 174,891.96 = 83,150.96 : x
  2. Step 2: Convert to fraction form
    126,721.76/174,891.96 = 83,150.96/x
  3. Step 3: Cross multiply
    126,721.76x = 174,891.96 × 83,150.96
  4. Step 4: Simplify right side
    126,721.76x = 14,542,433,495.82
  5. Step 5: Solve for x
    x = 14,542,433,495.82/126,721.76
  6. Step 6: Final answer
    x = 114,758.78

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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.