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Finding the Fourth Proportional to 159,644.28, 220,310.64 and 88,027.20

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Solution

The fourth proportional to 159,644.28, 220,310.64 and 88,027.20 is: 121,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,644.28 : 220,310.64 = 88,027.20 : x
  2. Step 2: Convert to fraction form
    159,644.28/220,310.64 = 88,027.20/x
  3. Step 3: Cross multiply
    159,644.28x = 220,310.64 × 88,027.20
  4. Step 4: Simplify right side
    159,644.28x = 19,393,328,769.41
  5. Step 5: Solve for x
    x = 19,393,328,769.41/159,644.28
  6. Step 6: Final answer
    x = 121,478.38

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1.5x scale

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.