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Finding the Fourth Proportional to 149,391.23, 206,151.93 and 85,724.82

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Solution

The fourth proportional to 149,391.23, 206,151.93 and 85,724.82 is: 118,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,391.23 : 206,151.93 = 85,724.82 : x
  2. Step 2: Convert to fraction form
    149,391.23/206,151.93 = 85,724.82/x
  3. Step 3: Cross multiply
    149,391.23x = 206,151.93 × 85,724.82
  4. Step 4: Simplify right side
    149,391.23x = 17,672,337,091.90
  5. Step 5: Solve for x
    x = 17,672,337,091.90/149,391.23
  6. Step 6: Final answer
    x = 118,295.68

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