Home / 192,960.11-289,539-91,872.56

Finding the Fourth Proportional to 192,960.11, 289,539 and 91,872.56

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Solution

The fourth proportional to 192,960.11, 289,539 and 91,872.56 is: 137,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,960.11 : 289,539 = 91,872.56 : x
  2. Step 2: Convert to fraction form
    192,960.11/289,539 = 91,872.56/x
  3. Step 3: Cross multiply
    192,960.11x = 289,539 × 91,872.56
  4. Step 4: Simplify right side
    192,960.11x = 26,600,687,702.15
  5. Step 5: Solve for x
    x = 26,600,687,702.15/192,960.11
  6. Step 6: Final answer
    x = 137,855.89

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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.