Home / 198,899.28-274,481.04-109,475.28

Finding the Fourth Proportional to 198,899.28, 274,481.04 and 109,475.28

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Solution

The fourth proportional to 198,899.28, 274,481.04 and 109,475.28 is: 151,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,899.28 : 274,481.04 = 109,475.28 : x
  2. Step 2: Convert to fraction form
    198,899.28/274,481.04 = 109,475.28/x
  3. Step 3: Cross multiply
    198,899.28x = 274,481.04 × 109,475.28
  4. Step 4: Simplify right side
    198,899.28x = 30,048,888,708.69
  5. Step 5: Solve for x
    x = 30,048,888,708.69/198,899.28
  6. Step 6: Final answer
    x = 151,075.90

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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.