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Finding the Fourth Proportional to 100,955.25, 139,321.13 and 56,246.13

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Solution

The fourth proportional to 100,955.25, 139,321.13 and 56,246.13 is: 77,621.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,955.25 : 139,321.13 = 56,246.13 : x
  2. Step 2: Convert to fraction form
    100,955.25/139,321.13 = 56,246.13/x
  3. Step 3: Cross multiply
    100,955.25x = 139,321.13 × 56,246.13
  4. Step 4: Simplify right side
    100,955.25x = 7,836,274,389.73
  5. Step 5: Solve for x
    x = 7,836,274,389.73/100,955.25
  6. Step 6: Final answer
    x = 77,621.27

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