Home / 108,129.93-162,229.59-51,974.10

Finding the Fourth Proportional to 108,129.93, 162,229.59 and 51,974.10

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Solution

The fourth proportional to 108,129.93, 162,229.59 and 51,974.10 is: 77,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,129.93 : 162,229.59 = 51,974.10 : x
  2. Step 2: Convert to fraction form
    108,129.93/162,229.59 = 51,974.10/x
  3. Step 3: Cross multiply
    108,129.93x = 162,229.59 × 51,974.10
  4. Step 4: Simplify right side
    108,129.93x = 8,431,736,933.62
  5. Step 5: Solve for x
    x = 8,431,736,933.62/108,129.93
  6. Step 6: Final answer
    x = 77,977.83

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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.