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Finding the Fourth Proportional to 158,268.05, 218,430.70 and 90,269.43

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Solution

The fourth proportional to 158,268.05, 218,430.70 and 90,269.43 is: 124,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,268.05 : 218,430.70 = 90,269.43 : x
  2. Step 2: Convert to fraction form
    158,268.05/218,430.70 = 90,269.43/x
  3. Step 3: Cross multiply
    158,268.05x = 218,430.70 × 90,269.43
  4. Step 4: Simplify right side
    158,268.05x = 19,717,615,770.27
  5. Step 5: Solve for x
    x = 19,717,615,770.27/158,268.05
  6. Step 6: Final answer
    x = 124,583.68

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