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Finding the Fourth Proportional to 93,278.68, 128,035.85 and 82,981.60

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Solution

The fourth proportional to 93,278.68, 128,035.85 and 82,981.60 is: 113,901.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.68 : 128,035.85 = 82,981.60 : x
  2. Step 2: Convert to fraction form
    93,278.68/128,035.85 = 82,981.60/x
  3. Step 3: Cross multiply
    93,278.68x = 128,035.85 × 82,981.60
  4. Step 4: Simplify right side
    93,278.68x = 10,624,619,690.36
  5. Step 5: Solve for x
    x = 10,624,619,690.36/93,278.68
  6. Step 6: Final answer
    x = 113,901.91

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