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Finding the Fourth Proportional to 159,610.37, 220,262.33 and 91,631.76

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Solution

The fourth proportional to 159,610.37, 220,262.33 and 91,631.76 is: 126,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,610.37 : 220,262.33 = 91,631.76 : x
  2. Step 2: Convert to fraction form
    159,610.37/220,262.33 = 91,631.76/x
  3. Step 3: Cross multiply
    159,610.37x = 220,262.33 × 91,631.76
  4. Step 4: Simplify right side
    159,610.37x = 20,183,023,718.41
  5. Step 5: Solve for x
    x = 20,183,023,718.41/159,610.37
  6. Step 6: Final answer
    x = 126,451.83

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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.