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Finding the Fourth Proportional to 120,144.68, 180,108.30 and 56,925.36

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Solution

The fourth proportional to 120,144.68, 180,108.30 and 56,925.36 is: 85,336.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,144.68 : 180,108.30 = 56,925.36 : x
  2. Step 2: Convert to fraction form
    120,144.68/180,108.30 = 56,925.36/x
  3. Step 3: Cross multiply
    120,144.68x = 180,108.30 × 56,925.36
  4. Step 4: Simplify right side
    120,144.68x = 10,252,729,816.49
  5. Step 5: Solve for x
    x = 10,252,729,816.49/120,144.68
  6. Step 6: Final answer
    x = 85,336.53

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