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Finding the Fourth Proportional to 120,490.61, 166,274.48 and 66,775.16

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Solution

The fourth proportional to 120,490.61, 166,274.48 and 66,775.16 is: 92,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,490.61 : 166,274.48 = 66,775.16 : x
  2. Step 2: Convert to fraction form
    120,490.61/166,274.48 = 66,775.16/x
  3. Step 3: Cross multiply
    120,490.61x = 166,274.48 × 66,775.16
  4. Step 4: Simplify right side
    120,490.61x = 11,103,005,588.54
  5. Step 5: Solve for x
    x = 11,103,005,588.54/120,490.61
  6. Step 6: Final answer
    x = 92,148.31

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