Home / 80,218.22-120,326.99-20,246.83

Finding the Fourth Proportional to 80,218.22, 120,326.99 and 20,246.83

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Solution

The fourth proportional to 80,218.22, 120,326.99 and 20,246.83 is: 30,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,218.22 : 120,326.99 = 20,246.83 : x
  2. Step 2: Convert to fraction form
    80,218.22/120,326.99 = 20,246.83/x
  3. Step 3: Cross multiply
    80,218.22x = 120,326.99 × 20,246.83
  4. Step 4: Simplify right side
    80,218.22x = 2,436,239,708.89
  5. Step 5: Solve for x
    x = 2,436,239,708.89/80,218.22
  6. Step 6: Final answer
    x = 30,370.16

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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.