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Finding the Fourth Proportional to 199,658.68, 275,639.70 and 136,089.88

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Solution

The fourth proportional to 199,658.68, 275,639.70 and 136,089.88 is: 187,879.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,658.68 : 275,639.70 = 136,089.88 : x
  2. Step 2: Convert to fraction form
    199,658.68/275,639.70 = 136,089.88/x
  3. Step 3: Cross multiply
    199,658.68x = 275,639.70 × 136,089.88
  4. Step 4: Simplify right side
    199,658.68x = 37,511,773,696.24
  5. Step 5: Solve for x
    x = 37,511,773,696.24/199,658.68
  6. Step 6: Final answer
    x = 187,879.50

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