Home / 199,109.20-274,770.57-109,685.20

Finding the Fourth Proportional to 199,109.20, 274,770.57 and 109,685.20

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Solution

The fourth proportional to 199,109.20, 274,770.57 and 109,685.20 is: 151,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,109.20 : 274,770.57 = 109,685.20 : x
  2. Step 2: Convert to fraction form
    199,109.20/274,770.57 = 109,685.20/x
  3. Step 3: Cross multiply
    199,109.20x = 274,770.57 × 109,685.20
  4. Step 4: Simplify right side
    199,109.20x = 30,138,264,511.85
  5. Step 5: Solve for x
    x = 30,138,264,511.85/199,109.20
  6. Step 6: Final answer
    x = 151,365.51

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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.