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Finding the Fourth Proportional to 159,910.76, 220,680.29 and 88,295.31

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Solution

The fourth proportional to 159,910.76, 220,680.29 and 88,295.31 is: 121,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,910.76 : 220,680.29 = 88,295.31 : x
  2. Step 2: Convert to fraction form
    159,910.76/220,680.29 = 88,295.31/x
  3. Step 3: Cross multiply
    159,910.76x = 220,680.29 × 88,295.31
  4. Step 4: Simplify right side
    159,910.76x = 19,485,034,174.96
  5. Step 5: Solve for x
    x = 19,485,034,174.96/159,910.76
  6. Step 6: Final answer
    x = 121,849.43

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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.