Home / 192,900.28-289,350.45-80,519.19

Finding the Fourth Proportional to 192,900.28, 289,350.45 and 80,519.19

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Solution

The fourth proportional to 192,900.28, 289,350.45 and 80,519.19 is: 120,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,900.28 : 289,350.45 = 80,519.19 : x
  2. Step 2: Convert to fraction form
    192,900.28/289,350.45 = 80,519.19/x
  3. Step 3: Cross multiply
    192,900.28x = 289,350.45 × 80,519.19
  4. Step 4: Simplify right side
    192,900.28x = 23,298,264,629.13
  5. Step 5: Solve for x
    x = 23,298,264,629.13/192,900.28
  6. Step 6: Final answer
    x = 120,778.80

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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.