Home / 170,719.70-256,079.55-108,665.30

Finding the Fourth Proportional to 170,719.70, 256,079.55 and 108,665.30

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Solution

The fourth proportional to 170,719.70, 256,079.55 and 108,665.30 is: 162,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,719.70 : 256,079.55 = 108,665.30 : x
  2. Step 2: Convert to fraction form
    170,719.70/256,079.55 = 108,665.30/x
  3. Step 3: Cross multiply
    170,719.70x = 256,079.55 × 108,665.30
  4. Step 4: Simplify right side
    170,719.70x = 27,826,961,124.62
  5. Step 5: Solve for x
    x = 27,826,961,124.62/170,719.70
  6. Step 6: Final answer
    x = 162,997.95

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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.