Home / 198,806.80-274,356.08-108,163.85

Finding the Fourth Proportional to 198,806.80, 274,356.08 and 108,163.85

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Solution

The fourth proportional to 198,806.80, 274,356.08 and 108,163.85 is: 149,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,806.80 : 274,356.08 = 108,163.85 : x
  2. Step 2: Convert to fraction form
    198,806.80/274,356.08 = 108,163.85/x
  3. Step 3: Cross multiply
    198,806.80x = 274,356.08 × 108,163.85
  4. Step 4: Simplify right side
    198,806.80x = 29,675,408,782.34
  5. Step 5: Solve for x
    x = 29,675,408,782.34/198,806.80
  6. Step 6: Final answer
    x = 149,267.58

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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.