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Finding the Fourth Proportional to 159,856.81, 220,602.41 and 88,236.85

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Solution

The fourth proportional to 159,856.81, 220,602.41 and 88,236.85 is: 121,766.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,856.81 : 220,602.41 = 88,236.85 : x
  2. Step 2: Convert to fraction form
    159,856.81/220,602.41 = 88,236.85/x
  3. Step 3: Cross multiply
    159,856.81x = 220,602.41 × 88,236.85
  4. Step 4: Simplify right side
    159,856.81x = 19,465,261,760.81
  5. Step 5: Solve for x
    x = 19,465,261,760.81/159,856.81
  6. Step 6: Final answer
    x = 121,766.86

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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.