Home / 193,515.75-290,198.97-75,171.51

Finding the Fourth Proportional to 193,515.75, 290,198.97 and 75,171.51

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Solution

The fourth proportional to 193,515.75, 290,198.97 and 75,171.51 is: 112,728.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,515.75 : 290,198.97 = 75,171.51 : x
  2. Step 2: Convert to fraction form
    193,515.75/290,198.97 = 75,171.51/x
  3. Step 3: Cross multiply
    193,515.75x = 290,198.97 × 75,171.51
  4. Step 4: Simplify right side
    193,515.75x = 21,814,694,775.34
  5. Step 5: Solve for x
    x = 21,814,694,775.34/193,515.75
  6. Step 6: Final answer
    x = 112,728.27

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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.