Home / 170,867.26-256,355.72-82,127.20

Finding the Fourth Proportional to 170,867.26, 256,355.72 and 82,127.20

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Solution

The fourth proportional to 170,867.26, 256,355.72 and 82,127.20 is: 123,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,867.26 : 256,355.72 = 82,127.20 : x
  2. Step 2: Convert to fraction form
    170,867.26/256,355.72 = 82,127.20/x
  3. Step 3: Cross multiply
    170,867.26x = 256,355.72 × 82,127.20
  4. Step 4: Simplify right side
    170,867.26x = 21,053,777,487.58
  5. Step 5: Solve for x
    x = 21,053,777,487.58/170,867.26
  6. Step 6: Final answer
    x = 123,217.15

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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.