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Finding the Fourth Proportional to 158,310.80, 218,493.60 and 90,327.68

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Solution

The fourth proportional to 158,310.80, 218,493.60 and 90,327.68 is: 124,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,310.80 : 218,493.60 = 90,327.68 : x
  2. Step 2: Convert to fraction form
    158,310.80/218,493.60 = 90,327.68/x
  3. Step 3: Cross multiply
    158,310.80x = 218,493.60 × 90,327.68
  4. Step 4: Simplify right side
    158,310.80x = 19,736,019,982.85
  5. Step 5: Solve for x
    x = 19,736,019,982.85/158,310.80
  6. Step 6: Final answer
    x = 124,666.29

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