Home / 108,149.10-162,129.66-51,961.02

Finding the Fourth Proportional to 108,149.10, 162,129.66 and 51,961.02

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Solution

The fourth proportional to 108,149.10, 162,129.66 and 51,961.02 is: 77,896.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,149.10 : 162,129.66 = 51,961.02 : x
  2. Step 2: Convert to fraction form
    108,149.10/162,129.66 = 51,961.02/x
  3. Step 3: Cross multiply
    108,149.10x = 162,129.66 × 51,961.02
  4. Step 4: Simplify right side
    108,149.10x = 8,424,422,505.85
  5. Step 5: Solve for x
    x = 8,424,422,505.85/108,149.10
  6. Step 6: Final answer
    x = 77,896.37

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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.