Home / 170,815.70-256,223.55-108,761.30

Finding the Fourth Proportional to 170,815.70, 256,223.55 and 108,761.30

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Solution

The fourth proportional to 170,815.70, 256,223.55 and 108,761.30 is: 163,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,815.70 : 256,223.55 = 108,761.30 : x
  2. Step 2: Convert to fraction form
    170,815.70/256,223.55 = 108,761.30/x
  3. Step 3: Cross multiply
    170,815.70x = 256,223.55 × 108,761.30
  4. Step 4: Simplify right side
    170,815.70x = 27,867,206,388.62
  5. Step 5: Solve for x
    x = 27,867,206,388.62/170,815.70
  6. Step 6: Final answer
    x = 163,141.95

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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.