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Finding the Fourth Proportional to 158,262.36, 218,401.74 and 86,641.80

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Solution

The fourth proportional to 158,262.36, 218,401.74 and 86,641.80 is: 119,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,262.36 : 218,401.74 = 86,641.80 : x
  2. Step 2: Convert to fraction form
    158,262.36/218,401.74 = 86,641.80/x
  3. Step 3: Cross multiply
    158,262.36x = 218,401.74 × 86,641.80
  4. Step 4: Simplify right side
    158,262.36x = 18,922,719,876.73
  5. Step 5: Solve for x
    x = 18,922,719,876.73/158,262.36
  6. Step 6: Final answer
    x = 119,565.51

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