Home / 170,956.20-256,434.30-82,382.70

Finding the Fourth Proportional to 170,956.20, 256,434.30 and 82,382.70

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Solution

The fourth proportional to 170,956.20, 256,434.30 and 82,382.70 is: 123,574.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,956.20 : 256,434.30 = 82,382.70 : x
  2. Step 2: Convert to fraction form
    170,956.20/256,434.30 = 82,382.70/x
  3. Step 3: Cross multiply
    170,956.20x = 256,434.30 × 82,382.70
  4. Step 4: Simplify right side
    170,956.20x = 21,125,750,006.61
  5. Step 5: Solve for x
    x = 21,125,750,006.61/170,956.20
  6. Step 6: Final answer
    x = 123,574.05

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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.