Home / 198,649.13-274,135.85-109,225.13

Finding the Fourth Proportional to 198,649.13, 274,135.85 and 109,225.13

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Solution

The fourth proportional to 198,649.13, 274,135.85 and 109,225.13 is: 150,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,649.13 : 274,135.85 = 109,225.13 : x
  2. Step 2: Convert to fraction form
    198,649.13/274,135.85 = 109,225.13/x
  3. Step 3: Cross multiply
    198,649.13x = 274,135.85 × 109,225.13
  4. Step 4: Simplify right side
    198,649.13x = 29,942,521,937.11
  5. Step 5: Solve for x
    x = 29,942,521,937.11/198,649.13
  6. Step 6: Final answer
    x = 150,730.70

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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.