Home / 192,219.45-288,221.19-79,824.05

Finding the Fourth Proportional to 192,219.45, 288,221.19 and 79,824.05

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Solution

The fourth proportional to 192,219.45, 288,221.19 and 79,824.05 is: 119,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,219.45 : 288,221.19 = 79,824.05 : x
  2. Step 2: Convert to fraction form
    192,219.45/288,221.19 = 79,824.05/x
  3. Step 3: Cross multiply
    192,219.45x = 288,221.19 × 79,824.05
  4. Step 4: Simplify right side
    192,219.45x = 23,006,982,022.00
  5. Step 5: Solve for x
    x = 23,006,982,022.00/192,219.45
  6. Step 6: Final answer
    x = 119,691.23

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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.