Home / 193,819.20-290,738.40-100,507.20

Finding the Fourth Proportional to 193,819.20, 290,738.40 and 100,507.20

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Solution

The fourth proportional to 193,819.20, 290,738.40 and 100,507.20 is: 150,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,819.20 : 290,738.40 = 100,507.20 : x
  2. Step 2: Convert to fraction form
    193,819.20/290,738.40 = 100,507.20/x
  3. Step 3: Cross multiply
    193,819.20x = 290,738.40 × 100,507.20
  4. Step 4: Simplify right side
    193,819.20x = 29,221,302,516.48
  5. Step 5: Solve for x
    x = 29,221,302,516.48/193,819.20
  6. Step 6: Final answer
    x = 150,765.78

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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.