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Finding the Fourth Proportional to 131,380.50, 181,305.82 and 71,764.50

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Solution

The fourth proportional to 131,380.50, 181,305.82 and 71,764.50 is: 99,035.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,380.50 : 181,305.82 = 71,764.50 : x
  2. Step 2: Convert to fraction form
    131,380.50/181,305.82 = 71,764.50/x
  3. Step 3: Cross multiply
    131,380.50x = 181,305.82 × 71,764.50
  4. Step 4: Simplify right side
    131,380.50x = 13,011,321,519.39
  5. Step 5: Solve for x
    x = 13,011,321,519.39/131,380.50
  6. Step 6: Final answer
    x = 99,035.41

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