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Finding the Fourth Proportional to 159,660.96, 220,319.68 and 88,040.64

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Solution

The fourth proportional to 159,660.96, 220,319.68 and 88,040.64 is: 121,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,660.96 : 220,319.68 = 88,040.64 : x
  2. Step 2: Convert to fraction form
    159,660.96/220,319.68 = 88,040.64/x
  3. Step 3: Cross multiply
    159,660.96x = 220,319.68 × 88,040.64
  4. Step 4: Simplify right side
    159,660.96x = 19,397,085,631.80
  5. Step 5: Solve for x
    x = 19,397,085,631.80/159,660.96
  6. Step 6: Final answer
    x = 121,489.22

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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.