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Finding the Fourth Proportional to 206,105.58, 308,755.80 and 142,052.40

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Solution

The fourth proportional to 206,105.58, 308,755.80 and 142,052.40 is: 212,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,105.58 : 308,755.80 = 142,052.40 : x
  2. Step 2: Convert to fraction form
    206,105.58/308,755.80 = 142,052.40/x
  3. Step 3: Cross multiply
    206,105.58x = 308,755.80 × 142,052.40
  4. Step 4: Simplify right side
    206,105.58x = 43,859,502,403.92
  5. Step 5: Solve for x
    x = 43,859,502,403.92/206,105.58
  6. Step 6: Final answer
    x = 212,801.14

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