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Finding the Fourth Proportional to 210,755.72, 315,912.15 and 130,793.54

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Solution

The fourth proportional to 210,755.72, 315,912.15 and 130,793.54 is: 196,052.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,755.72 : 315,912.15 = 130,793.54 : x
  2. Step 2: Convert to fraction form
    210,755.72/315,912.15 = 130,793.54/x
  3. Step 3: Cross multiply
    210,755.72x = 315,912.15 × 130,793.54
  4. Step 4: Simplify right side
    210,755.72x = 41,319,266,847.95
  5. Step 5: Solve for x
    x = 41,319,266,847.95/210,755.72
  6. Step 6: Final answer
    x = 196,052.88

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