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Finding the Fourth Proportional to 159,870.53, 220,621.38 and 88,250.60

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Solution

The fourth proportional to 159,870.53, 220,621.38 and 88,250.60 is: 121,785.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,870.53 : 220,621.38 = 88,250.60 : x
  2. Step 2: Convert to fraction form
    159,870.53/220,621.38 = 88,250.60/x
  3. Step 3: Cross multiply
    159,870.53x = 220,621.38 × 88,250.60
  4. Step 4: Simplify right side
    159,870.53x = 19,469,969,378.44
  5. Step 5: Solve for x
    x = 19,469,969,378.44/159,870.53
  6. Step 6: Final answer
    x = 121,785.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.