Home / 192,278.40-288,520.87-80,036.09

Finding the Fourth Proportional to 192,278.40, 288,520.87 and 80,036.09

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Solution

The fourth proportional to 192,278.40, 288,520.87 and 80,036.09 is: 120,097.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,278.40 : 288,520.87 = 80,036.09 : x
  2. Step 2: Convert to fraction form
    192,278.40/288,520.87 = 80,036.09/x
  3. Step 3: Cross multiply
    192,278.40x = 288,520.87 × 80,036.09
  4. Step 4: Simplify right side
    192,278.40x = 23,092,082,318.20
  5. Step 5: Solve for x
    x = 23,092,082,318.20/192,278.40
  6. Step 6: Final answer
    x = 120,097.12

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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.