Home / 192,638.28-288,694.96-92,791.20

Finding the Fourth Proportional to 192,638.28, 288,694.96 and 92,791.20

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Solution

The fourth proportional to 192,638.28, 288,694.96 and 92,791.20 is: 139,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,638.28 : 288,694.96 = 92,791.20 : x
  2. Step 2: Convert to fraction form
    192,638.28/288,694.96 = 92,791.20/x
  3. Step 3: Cross multiply
    192,638.28x = 288,694.96 × 92,791.20
  4. Step 4: Simplify right side
    192,638.28x = 26,788,351,772.35
  5. Step 5: Solve for x
    x = 26,788,351,772.35/192,638.28
  6. Step 6: Final answer
    x = 139,060.38

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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.