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Finding the Fourth Proportional to 207,369.05, 311,174.55 and 87,418.71

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Solution

The fourth proportional to 207,369.05, 311,174.55 and 87,418.71 is: 131,179.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,369.05 : 311,174.55 = 87,418.71 : x
  2. Step 2: Convert to fraction form
    207,369.05/311,174.55 = 87,418.71/x
  3. Step 3: Cross multiply
    207,369.05x = 311,174.55 × 87,418.71
  4. Step 4: Simplify right side
    207,369.05x = 27,202,477,745.83
  5. Step 5: Solve for x
    x = 27,202,477,745.83/207,369.05
  6. Step 6: Final answer
    x = 131,179.06

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