Home / 209,105.32-313,499.26-107,794.20

Finding the Fourth Proportional to 209,105.32, 313,499.26 and 107,794.20

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Solution

The fourth proportional to 209,105.32, 313,499.26 and 107,794.20 is: 161,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,105.32 : 313,499.26 = 107,794.20 : x
  2. Step 2: Convert to fraction form
    209,105.32/313,499.26 = 107,794.20/x
  3. Step 3: Cross multiply
    209,105.32x = 313,499.26 × 107,794.20
  4. Step 4: Simplify right side
    209,105.32x = 33,793,401,932.29
  5. Step 5: Solve for x
    x = 33,793,401,932.29/209,105.32
  6. Step 6: Final answer
    x = 161,609.48

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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.