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Finding the Fourth Proportional to 171,704.80, 257,611.20 and 82,961.20

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Solution

The fourth proportional to 171,704.80, 257,611.20 and 82,961.20 is: 124,467.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,704.80 : 257,611.20 = 82,961.20 : x
  2. Step 2: Convert to fraction form
    171,704.80/257,611.20 = 82,961.20/x
  3. Step 3: Cross multiply
    171,704.80x = 257,611.20 × 82,961.20
  4. Step 4: Simplify right side
    171,704.80x = 21,371,734,285.44
  5. Step 5: Solve for x
    x = 21,371,734,285.44/171,704.80
  6. Step 6: Final answer
    x = 124,467.89

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