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Finding the Fourth Proportional to 154,314.85, 212,974.11 and 86,335.60

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Solution

The fourth proportional to 154,314.85, 212,974.11 and 86,335.60 is: 119,154.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,314.85 : 212,974.11 = 86,335.60 : x
  2. Step 2: Convert to fraction form
    154,314.85/212,974.11 = 86,335.60/x
  3. Step 3: Cross multiply
    154,314.85x = 212,974.11 × 86,335.60
  4. Step 4: Simplify right side
    154,314.85x = 18,387,247,571.32
  5. Step 5: Solve for x
    x = 18,387,247,571.32/154,314.85
  6. Step 6: Final answer
    x = 119,154.10

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