Home / 125,299.56-172,911.78-71,584.14

Finding the Fourth Proportional to 125,299.56, 172,911.78 and 71,584.14

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Solution

The fourth proportional to 125,299.56, 172,911.78 and 71,584.14 is: 98,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,299.56 : 172,911.78 = 71,584.14 : x
  2. Step 2: Convert to fraction form
    125,299.56/172,911.78 = 71,584.14/x
  3. Step 3: Cross multiply
    125,299.56x = 172,911.78 × 71,584.14
  4. Step 4: Simplify right side
    125,299.56x = 12,377,741,067.17
  5. Step 5: Solve for x
    x = 12,377,741,067.17/125,299.56
  6. Step 6: Final answer
    x = 98,785.19

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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.