Home / 170,937.20-256,405.80-82,363.70

Finding the Fourth Proportional to 170,937.20, 256,405.80 and 82,363.70

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Solution

The fourth proportional to 170,937.20, 256,405.80 and 82,363.70 is: 123,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,937.20 : 256,405.80 = 82,363.70 : x
  2. Step 2: Convert to fraction form
    170,937.20/256,405.80 = 82,363.70/x
  3. Step 3: Cross multiply
    170,937.20x = 256,405.80 × 82,363.70
  4. Step 4: Simplify right side
    170,937.20x = 21,118,530,389.46
  5. Step 5: Solve for x
    x = 21,118,530,389.46/170,937.20
  6. Step 6: Final answer
    x = 123,545.55

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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.