Home / 220,159.56-330,135.26-85,286.80

Finding the Fourth Proportional to 220,159.56, 330,135.26 and 85,286.80

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Solution

The fourth proportional to 220,159.56, 330,135.26 and 85,286.80 is: 127,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,159.56 : 330,135.26 = 85,286.80 : x
  2. Step 2: Convert to fraction form
    220,159.56/330,135.26 = 85,286.80/x
  3. Step 3: Cross multiply
    220,159.56x = 330,135.26 × 85,286.80
  4. Step 4: Simplify right side
    220,159.56x = 28,156,179,466.13
  5. Step 5: Solve for x
    x = 28,156,179,466.13/220,159.56
  6. Step 6: Final answer
    x = 127,889.88

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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.