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Finding the Fourth Proportional to 159,791.96, 220,512.69 and 88,171.97

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Solution

The fourth proportional to 159,791.96, 220,512.69 and 88,171.97 is: 121,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,791.96 : 220,512.69 = 88,171.97 : x
  2. Step 2: Convert to fraction form
    159,791.96/220,512.69 = 88,171.97/x
  3. Step 3: Cross multiply
    159,791.96x = 220,512.69 × 88,171.97
  4. Step 4: Simplify right side
    159,791.96x = 19,443,037,184.74
  5. Step 5: Solve for x
    x = 19,443,037,184.74/159,791.96
  6. Step 6: Final answer
    x = 121,677.19

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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.