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Finding the Fourth Proportional to 120,166.70, 180,250.05 and 101,139.80

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Solution

The fourth proportional to 120,166.70, 180,250.05 and 101,139.80 is: 151,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,166.70 : 180,250.05 = 101,139.80 : x
  2. Step 2: Convert to fraction form
    120,166.70/180,250.05 = 101,139.80/x
  3. Step 3: Cross multiply
    120,166.70x = 180,250.05 × 101,139.80
  4. Step 4: Simplify right side
    120,166.70x = 18,230,454,006.99
  5. Step 5: Solve for x
    x = 18,230,454,006.99/120,166.70
  6. Step 6: Final answer
    x = 151,709.70

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