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Finding the Fourth Proportional to 179,727.64, 269,626.02 and 68,911

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Solution

The fourth proportional to 179,727.64, 269,626.02 and 68,911 is: 103,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,727.64 : 269,626.02 = 68,911 : x
  2. Step 2: Convert to fraction form
    179,727.64/269,626.02 = 68,911/x
  3. Step 3: Cross multiply
    179,727.64x = 269,626.02 × 68,911
  4. Step 4: Simplify right side
    179,727.64x = 18,580,198,664.22
  5. Step 5: Solve for x
    x = 18,580,198,664.22/179,727.64
  6. Step 6: Final answer
    x = 103,379.75

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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.