Home / 108,098.24-149,132.66-72,231.44

Finding the Fourth Proportional to 108,098.24, 149,132.66 and 72,231.44

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Solution

The fourth proportional to 108,098.24, 149,132.66 and 72,231.44 is: 99,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,098.24 : 149,132.66 = 72,231.44 : x
  2. Step 2: Convert to fraction form
    108,098.24/149,132.66 = 72,231.44/x
  3. Step 3: Cross multiply
    108,098.24x = 149,132.66 × 72,231.44
  4. Step 4: Simplify right side
    108,098.24x = 10,772,065,676.01
  5. Step 5: Solve for x
    x = 10,772,065,676.01/108,098.24
  6. Step 6: Final answer
    x = 99,650.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.