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Finding the Fourth Proportional to 137,978.60, 206,805.90 and 136,501.16

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Solution

The fourth proportional to 137,978.60, 206,805.90 and 136,501.16 is: 204,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,978.60 : 206,805.90 = 136,501.16 : x
  2. Step 2: Convert to fraction form
    137,978.60/206,805.90 = 136,501.16/x
  3. Step 3: Cross multiply
    137,978.60x = 206,805.90 × 136,501.16
  4. Step 4: Simplify right side
    137,978.60x = 28,229,245,244.84
  5. Step 5: Solve for x
    x = 28,229,245,244.84/137,978.60
  6. Step 6: Final answer
    x = 204,591.47

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