Home / 108,610.38-162,890.96-38,489.67

Finding the Fourth Proportional to 108,610.38, 162,890.96 and 38,489.67

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Solution

The fourth proportional to 108,610.38, 162,890.96 and 38,489.67 is: 57,725.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,610.38 : 162,890.96 = 38,489.67 : x
  2. Step 2: Convert to fraction form
    108,610.38/162,890.96 = 38,489.67/x
  3. Step 3: Cross multiply
    108,610.38x = 162,890.96 × 38,489.67
  4. Step 4: Simplify right side
    108,610.38x = 6,269,619,103.93
  5. Step 5: Solve for x
    x = 6,269,619,103.93/108,610.38
  6. Step 6: Final answer
    x = 57,725.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.