Home / 192,669.82-289,087.76-80,372.14

Finding the Fourth Proportional to 192,669.82, 289,087.76 and 80,372.14

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Solution

The fourth proportional to 192,669.82, 289,087.76 and 80,372.14 is: 120,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,669.82 : 289,087.76 = 80,372.14 : x
  2. Step 2: Convert to fraction form
    192,669.82/289,087.76 = 80,372.14/x
  3. Step 3: Cross multiply
    192,669.82x = 289,087.76 × 80,372.14
  4. Step 4: Simplify right side
    192,669.82x = 23,234,601,919.01
  5. Step 5: Solve for x
    x = 23,234,601,919.01/192,669.82
  6. Step 6: Final answer
    x = 120,592.85

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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.