Home / 207,721.92-311,358.24-82,925.76

Finding the Fourth Proportional to 207,721.92, 311,358.24 and 82,925.76

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Solution

The fourth proportional to 207,721.92, 311,358.24 and 82,925.76 is: 124,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,721.92 : 311,358.24 = 82,925.76 : x
  2. Step 2: Convert to fraction form
    207,721.92/311,358.24 = 82,925.76/x
  3. Step 3: Cross multiply
    207,721.92x = 311,358.24 × 82,925.76
  4. Step 4: Simplify right side
    207,721.92x = 25,819,618,684.26
  5. Step 5: Solve for x
    x = 25,819,618,684.26/207,721.92
  6. Step 6: Final answer
    x = 124,298.96

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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.