Home / 192,669.57-289,087.40-80,371.89

Finding the Fourth Proportional to 192,669.57, 289,087.40 and 80,371.89

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Solution

The fourth proportional to 192,669.57, 289,087.40 and 80,371.89 is: 120,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,669.57 : 289,087.40 = 80,371.89 : x
  2. Step 2: Convert to fraction form
    192,669.57/289,087.40 = 80,371.89/x
  3. Step 3: Cross multiply
    192,669.57x = 289,087.40 × 80,371.89
  4. Step 4: Simplify right side
    192,669.57x = 23,234,500,311.33
  5. Step 5: Solve for x
    x = 23,234,500,311.33/192,669.57
  6. Step 6: Final answer
    x = 120,592.48

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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.