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Finding the Fourth Proportional to 149,515.88, 206,330.28 and 81,532.64

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Solution

The fourth proportional to 149,515.88, 206,330.28 and 81,532.64 is: 112,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,515.88 : 206,330.28 = 81,532.64 : x
  2. Step 2: Convert to fraction form
    149,515.88/206,330.28 = 81,532.64/x
  3. Step 3: Cross multiply
    149,515.88x = 206,330.28 × 81,532.64
  4. Step 4: Simplify right side
    149,515.88x = 16,822,652,440.34
  5. Step 5: Solve for x
    x = 16,822,652,440.34/149,515.88
  6. Step 6: Final answer
    x = 112,514.15

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