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Finding the Fourth Proportional to 192,452.91, 288,760.10 and 85,763.37

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Solution

The fourth proportional to 192,452.91, 288,760.10 and 85,763.37 is: 128,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,452.91 : 288,760.10 = 85,763.37 : x
  2. Step 2: Convert to fraction form
    192,452.91/288,760.10 = 85,763.37/x
  3. Step 3: Cross multiply
    192,452.91x = 288,760.10 × 85,763.37
  4. Step 4: Simplify right side
    192,452.91x = 24,765,037,853.74
  5. Step 5: Solve for x
    x = 24,765,037,853.74/192,452.91
  6. Step 6: Final answer
    x = 128,681.03

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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.