Home / 206,530.92-285,012.81-115,874.37

Finding the Fourth Proportional to 206,530.92, 285,012.81 and 115,874.37

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Solution

The fourth proportional to 206,530.92, 285,012.81 and 115,874.37 is: 159,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,530.92 : 285,012.81 = 115,874.37 : x
  2. Step 2: Convert to fraction form
    206,530.92/285,012.81 = 115,874.37/x
  3. Step 3: Cross multiply
    206,530.92x = 285,012.81 × 115,874.37
  4. Step 4: Simplify right side
    206,530.92x = 33,025,679,800.68
  5. Step 5: Solve for x
    x = 33,025,679,800.68/206,530.92
  6. Step 6: Final answer
    x = 159,906.71

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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.