Home / 108,142.38-149,226.22-62,819.12

Finding the Fourth Proportional to 108,142.38, 149,226.22 and 62,819.12

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Solution

The fourth proportional to 108,142.38, 149,226.22 and 62,819.12 is: 86,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,142.38 : 149,226.22 = 62,819.12 : x
  2. Step 2: Convert to fraction form
    108,142.38/149,226.22 = 62,819.12/x
  3. Step 3: Cross multiply
    108,142.38x = 149,226.22 × 62,819.12
  4. Step 4: Simplify right side
    108,142.38x = 9,374,259,821.33
  5. Step 5: Solve for x
    x = 9,374,259,821.33/108,142.38
  6. Step 6: Final answer
    x = 86,684.42

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1.5x scale

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.