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Finding the Fourth Proportional to 172,896.10, 259,240.47 and 67,589.62

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Solution

The fourth proportional to 172,896.10, 259,240.47 and 67,589.62 is: 101,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,896.10 : 259,240.47 = 67,589.62 : x
  2. Step 2: Convert to fraction form
    172,896.10/259,240.47 = 67,589.62/x
  3. Step 3: Cross multiply
    172,896.10x = 259,240.47 × 67,589.62
  4. Step 4: Simplify right side
    172,896.10x = 17,521,964,855.92
  5. Step 5: Solve for x
    x = 17,521,964,855.92/172,896.10
  6. Step 6: Final answer
    x = 101,343.90

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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.