Home / 108,306.38-162,324.09-52,131.46

Finding the Fourth Proportional to 108,306.38, 162,324.09 and 52,131.46

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Solution

The fourth proportional to 108,306.38, 162,324.09 and 52,131.46 is: 78,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,306.38 : 162,324.09 = 52,131.46 : x
  2. Step 2: Convert to fraction form
    108,306.38/162,324.09 = 52,131.46/x
  3. Step 3: Cross multiply
    108,306.38x = 162,324.09 × 52,131.46
  4. Step 4: Simplify right side
    108,306.38x = 8,462,191,804.87
  5. Step 5: Solve for x
    x = 8,462,191,804.87/108,306.38
  6. Step 6: Final answer
    x = 78,131.98

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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.