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Finding the Fourth Proportional to 158,273.21, 218,415.68 and 85,675.75

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Solution

The fourth proportional to 158,273.21, 218,415.68 and 85,675.75 is: 118,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,273.21 : 218,415.68 = 85,675.75 : x
  2. Step 2: Convert to fraction form
    158,273.21/218,415.68 = 85,675.75/x
  3. Step 3: Cross multiply
    158,273.21x = 218,415.68 × 85,675.75
  4. Step 4: Simplify right side
    158,273.21x = 18,712,926,221.34
  5. Step 5: Solve for x
    x = 18,712,926,221.34/158,273.21
  6. Step 6: Final answer
    x = 118,231.80

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