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Finding the Fourth Proportional to 172,122.58, 258,184.07 and 53,794.54

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Solution

The fourth proportional to 172,122.58, 258,184.07 and 53,794.54 is: 80,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,122.58 : 258,184.07 = 53,794.54 : x
  2. Step 2: Convert to fraction form
    172,122.58/258,184.07 = 53,794.54/x
  3. Step 3: Cross multiply
    172,122.58x = 258,184.07 × 53,794.54
  4. Step 4: Simplify right side
    172,122.58x = 13,888,891,721.08
  5. Step 5: Solve for x
    x = 13,888,891,721.08/172,122.58
  6. Step 6: Final answer
    x = 80,691.87

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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.