Home / 80,131.22-120,196.11-56,340.62

Finding the Fourth Proportional to 80,131.22, 120,196.11 and 56,340.62

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Solution

The fourth proportional to 80,131.22, 120,196.11 and 56,340.62 is: 84,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,131.22 : 120,196.11 = 56,340.62 : x
  2. Step 2: Convert to fraction form
    80,131.22/120,196.11 = 56,340.62/x
  3. Step 3: Cross multiply
    80,131.22x = 120,196.11 × 56,340.62
  4. Step 4: Simplify right side
    80,131.22x = 6,771,923,358.99
  5. Step 5: Solve for x
    x = 6,771,923,358.99/80,131.22
  6. Step 6: Final answer
    x = 84,510.42

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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.