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Finding the Fourth Proportional to 156,665.76, 216,198.21 and 85,045.27

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Solution

The fourth proportional to 156,665.76, 216,198.21 and 85,045.27 is: 117,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,665.76 : 216,198.21 = 85,045.27 : x
  2. Step 2: Convert to fraction form
    156,665.76/216,198.21 = 85,045.27/x
  3. Step 3: Cross multiply
    156,665.76x = 216,198.21 × 85,045.27
  4. Step 4: Simplify right side
    156,665.76x = 18,386,635,142.97
  5. Step 5: Solve for x
    x = 18,386,635,142.97/156,665.76
  6. Step 6: Final answer
    x = 117,362.18

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