Home / 170,890.38-256,390.41-82,150.38

Finding the Fourth Proportional to 170,890.38, 256,390.41 and 82,150.38

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Solution

The fourth proportional to 170,890.38, 256,390.41 and 82,150.38 is: 123,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,890.38 : 256,390.41 = 82,150.38 : x
  2. Step 2: Convert to fraction form
    170,890.38/256,390.41 = 82,150.38/x
  3. Step 3: Cross multiply
    170,890.38x = 256,390.41 × 82,150.38
  4. Step 4: Simplify right side
    170,890.38x = 21,062,569,609.86
  5. Step 5: Solve for x
    x = 21,062,569,609.86/170,890.38
  6. Step 6: Final answer
    x = 123,251.93

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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.