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Finding the Fourth Proportional to 336,121.20, 504,181.80 and 86,803.20

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Solution

The fourth proportional to 336,121.20, 504,181.80 and 86,803.20 is: 130,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,121.20 : 504,181.80 = 86,803.20 : x
  2. Step 2: Convert to fraction form
    336,121.20/504,181.80 = 86,803.20/x
  3. Step 3: Cross multiply
    336,121.20x = 504,181.80 × 86,803.20
  4. Step 4: Simplify right side
    336,121.20x = 43,764,593,621.76
  5. Step 5: Solve for x
    x = 43,764,593,621.76/336,121.20
  6. Step 6: Final answer
    x = 130,204.80

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