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Finding the Fourth Proportional to 115,183.71, 172,799.04 and 65,286.09

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Solution

The fourth proportional to 115,183.71, 172,799.04 and 65,286.09 is: 97,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,183.71 : 172,799.04 = 65,286.09 : x
  2. Step 2: Convert to fraction form
    115,183.71/172,799.04 = 65,286.09/x
  3. Step 3: Cross multiply
    115,183.71x = 172,799.04 × 65,286.09
  4. Step 4: Simplify right side
    115,183.71x = 11,281,373,677.35
  5. Step 5: Solve for x
    x = 11,281,373,677.35/115,183.71
  6. Step 6: Final answer
    x = 97,942.44

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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.