Home / 203,387.23-305,084.05-76,993.55

Finding the Fourth Proportional to 203,387.23, 305,084.05 and 76,993.55

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Solution

The fourth proportional to 203,387.23, 305,084.05 and 76,993.55 is: 115,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,387.23 : 305,084.05 = 76,993.55 : x
  2. Step 2: Convert to fraction form
    203,387.23/305,084.05 = 76,993.55/x
  3. Step 3: Cross multiply
    203,387.23x = 305,084.05 × 76,993.55
  4. Step 4: Simplify right side
    203,387.23x = 23,489,504,057.88
  5. Step 5: Solve for x
    x = 23,489,504,057.88/203,387.23
  6. Step 6: Final answer
    x = 115,491.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.