Home / 209,170.16-313,884.03-82,788.90

Finding the Fourth Proportional to 209,170.16, 313,884.03 and 82,788.90

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Solution

The fourth proportional to 209,170.16, 313,884.03 and 82,788.90 is: 124,234.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,170.16 : 313,884.03 = 82,788.90 : x
  2. Step 2: Convert to fraction form
    209,170.16/313,884.03 = 82,788.90/x
  3. Step 3: Cross multiply
    209,170.16x = 313,884.03 × 82,788.90
  4. Step 4: Simplify right side
    209,170.16x = 25,986,113,571.27
  5. Step 5: Solve for x
    x = 25,986,113,571.27/209,170.16
  6. Step 6: Final answer
    x = 124,234.33

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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.