Home / 199,109.45-274,770.92-109,685.45

Finding the Fourth Proportional to 199,109.45, 274,770.92 and 109,685.45

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Solution

The fourth proportional to 199,109.45, 274,770.92 and 109,685.45 is: 151,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,109.45 : 274,770.92 = 109,685.45 : x
  2. Step 2: Convert to fraction form
    199,109.45/274,770.92 = 109,685.45/x
  3. Step 3: Cross multiply
    199,109.45x = 274,770.92 × 109,685.45
  4. Step 4: Simplify right side
    199,109.45x = 30,138,372,007.11
  5. Step 5: Solve for x
    x = 30,138,372,007.11/199,109.45
  6. Step 6: Final answer
    x = 151,365.85

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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.