Home / 170,812.20-256,218.30-108,757.80

Finding the Fourth Proportional to 170,812.20, 256,218.30 and 108,757.80

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Solution

The fourth proportional to 170,812.20, 256,218.30 and 108,757.80 is: 163,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,812.20 : 256,218.30 = 108,757.80 : x
  2. Step 2: Convert to fraction form
    170,812.20/256,218.30 = 108,757.80/x
  3. Step 3: Cross multiply
    170,812.20x = 256,218.30 × 108,757.80
  4. Step 4: Simplify right side
    170,812.20x = 27,865,738,627.74
  5. Step 5: Solve for x
    x = 27,865,738,627.74/170,812.20
  6. Step 6: Final answer
    x = 163,136.70

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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.