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Finding the Fourth Proportional to 98,160.99, 135,446.31 and 55,138.44

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Solution

The fourth proportional to 98,160.99, 135,446.31 and 55,138.44 is: 76,082.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,160.99 : 135,446.31 = 55,138.44 : x
  2. Step 2: Convert to fraction form
    98,160.99/135,446.31 = 55,138.44/x
  3. Step 3: Cross multiply
    98,160.99x = 135,446.31 × 55,138.44
  4. Step 4: Simplify right side
    98,160.99x = 7,468,298,237.16
  5. Step 5: Solve for x
    x = 7,468,298,237.16/98,160.99
  6. Step 6: Final answer
    x = 76,082.14

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