Home / 192,803.12-289,015.91-80,515.44

Finding the Fourth Proportional to 192,803.12, 289,015.91 and 80,515.44

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Solution

The fourth proportional to 192,803.12, 289,015.91 and 80,515.44 is: 120,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,803.12 : 289,015.91 = 80,515.44 : x
  2. Step 2: Convert to fraction form
    192,803.12/289,015.91 = 80,515.44/x
  3. Step 3: Cross multiply
    192,803.12x = 289,015.91 × 80,515.44
  4. Step 4: Simplify right side
    192,803.12x = 23,270,242,758.07
  5. Step 5: Solve for x
    x = 23,270,242,758.07/192,803.12
  6. Step 6: Final answer
    x = 120,694.33

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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.