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Finding the Fourth Proportional to 120,840.05, 166,759.16 and 67,130.10

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Solution

The fourth proportional to 120,840.05, 166,759.16 and 67,130.10 is: 92,639.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,840.05 : 166,759.16 = 67,130.10 : x
  2. Step 2: Convert to fraction form
    120,840.05/166,759.16 = 67,130.10/x
  3. Step 3: Cross multiply
    120,840.05x = 166,759.16 × 67,130.10
  4. Step 4: Simplify right side
    120,840.05x = 11,194,558,751.07
  5. Step 5: Solve for x
    x = 11,194,558,751.07/120,840.05
  6. Step 6: Final answer
    x = 92,639.47

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