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Finding the Fourth Proportional to 136,672.72, 188,599.19 and 85,683.42

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Solution

The fourth proportional to 136,672.72, 188,599.19 and 85,683.42 is: 118,237.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,672.72 : 188,599.19 = 85,683.42 : x
  2. Step 2: Convert to fraction form
    136,672.72/188,599.19 = 85,683.42/x
  3. Step 3: Cross multiply
    136,672.72x = 188,599.19 × 85,683.42
  4. Step 4: Simplify right side
    136,672.72x = 16,159,823,180.01
  5. Step 5: Solve for x
    x = 16,159,823,180.01/136,672.72
  6. Step 6: Final answer
    x = 118,237.37

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