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Finding the Fourth Proportional to 93,022.40, 139,533.60 and 84,857.60

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Solution

The fourth proportional to 93,022.40, 139,533.60 and 84,857.60 is: 127,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,022.40 : 139,533.60 = 84,857.60 : x
  2. Step 2: Convert to fraction form
    93,022.40/139,533.60 = 84,857.60/x
  3. Step 3: Cross multiply
    93,022.40x = 139,533.60 × 84,857.60
  4. Step 4: Simplify right side
    93,022.40x = 11,840,486,415.36
  5. Step 5: Solve for x
    x = 11,840,486,415.36/93,022.40
  6. Step 6: Final answer
    x = 127,286.40

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