Home / 192,869.33-289,350.18-80,487.03

Finding the Fourth Proportional to 192,869.33, 289,350.18 and 80,487.03

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Solution

The fourth proportional to 192,869.33, 289,350.18 and 80,487.03 is: 120,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,869.33 : 289,350.18 = 80,487.03 : x
  2. Step 2: Convert to fraction form
    192,869.33/289,350.18 = 80,487.03/x
  3. Step 3: Cross multiply
    192,869.33x = 289,350.18 × 80,487.03
  4. Step 4: Simplify right side
    192,869.33x = 23,288,936,618.17
  5. Step 5: Solve for x
    x = 23,288,936,618.17/192,869.33
  6. Step 6: Final answer
    x = 120,749.82

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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.