Home / 198,021.93-273,266.91-111,979.55

Finding the Fourth Proportional to 198,021.93, 273,266.91 and 111,979.55

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Solution

The fourth proportional to 198,021.93, 273,266.91 and 111,979.55 is: 154,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,021.93 : 273,266.91 = 111,979.55 : x
  2. Step 2: Convert to fraction form
    198,021.93/273,266.91 = 111,979.55/x
  3. Step 3: Cross multiply
    198,021.93x = 273,266.91 × 111,979.55
  4. Step 4: Simplify right side
    198,021.93x = 30,600,304,245.36
  5. Step 5: Solve for x
    x = 30,600,304,245.36/198,021.93
  6. Step 6: Final answer
    x = 154,529.88

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1.5x scale

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.