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Finding the Fourth Proportional to 200,102.82, 300,154.68 and 81,774.15

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Solution

The fourth proportional to 200,102.82, 300,154.68 and 81,774.15 is: 122,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,102.82 : 300,154.68 = 81,774.15 : x
  2. Step 2: Convert to fraction form
    200,102.82/300,154.68 = 81,774.15/x
  3. Step 3: Cross multiply
    200,102.82x = 300,154.68 × 81,774.15
  4. Step 4: Simplify right side
    200,102.82x = 24,544,893,825.52
  5. Step 5: Solve for x
    x = 24,544,893,825.52/200,102.82
  6. Step 6: Final answer
    x = 122,661.41

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