Home / 108,234.11-162,173.67-76,489.12

Finding the Fourth Proportional to 108,234.11, 162,173.67 and 76,489.12

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Solution

The fourth proportional to 108,234.11, 162,173.67 and 76,489.12 is: 114,608.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,234.11 : 162,173.67 = 76,489.12 : x
  2. Step 2: Convert to fraction form
    108,234.11/162,173.67 = 76,489.12/x
  3. Step 3: Cross multiply
    108,234.11x = 162,173.67 × 76,489.12
  4. Step 4: Simplify right side
    108,234.11x = 12,404,520,685.82
  5. Step 5: Solve for x
    x = 12,404,520,685.82/108,234.11
  6. Step 6: Final answer
    x = 114,608.24

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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.