Home / 126,107.62-188,827.71-76,120.90

Finding the Fourth Proportional to 126,107.62, 188,827.71 and 76,120.90

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Solution

The fourth proportional to 126,107.62, 188,827.71 and 76,120.90 is: 113,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,107.62 : 188,827.71 = 76,120.90 : x
  2. Step 2: Convert to fraction form
    126,107.62/188,827.71 = 76,120.90/x
  3. Step 3: Cross multiply
    126,107.62x = 188,827.71 × 76,120.90
  4. Step 4: Simplify right side
    126,107.62x = 14,373,735,230.14
  5. Step 5: Solve for x
    x = 14,373,735,230.14/126,107.62
  6. Step 6: Final answer
    x = 113,979.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.