Home / 199,418.22-275,198-108,776.12

Finding the Fourth Proportional to 199,418.22, 275,198 and 108,776.12

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Solution

The fourth proportional to 199,418.22, 275,198 and 108,776.12 is: 150,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,418.22 : 275,198 = 108,776.12 : x
  2. Step 2: Convert to fraction form
    199,418.22/275,198 = 108,776.12/x
  3. Step 3: Cross multiply
    199,418.22x = 275,198 × 108,776.12
  4. Step 4: Simplify right side
    199,418.22x = 29,934,970,671.76
  5. Step 5: Solve for x
    x = 29,934,970,671.76/199,418.22
  6. Step 6: Final answer
    x = 150,111.51

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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.