Home / 170,816.20-256,224.30-108,761.80

Finding the Fourth Proportional to 170,816.20, 256,224.30 and 108,761.80

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Solution

The fourth proportional to 170,816.20, 256,224.30 and 108,761.80 is: 163,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,816.20 : 256,224.30 = 108,761.80 : x
  2. Step 2: Convert to fraction form
    170,816.20/256,224.30 = 108,761.80/x
  3. Step 3: Cross multiply
    170,816.20x = 256,224.30 × 108,761.80
  4. Step 4: Simplify right side
    170,816.20x = 27,867,416,071.74
  5. Step 5: Solve for x
    x = 27,867,416,071.74/170,816.20
  6. Step 6: Final answer
    x = 163,142.70

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1.5x scale

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.