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Finding the Fourth Proportional to 136,311.80, 204,467.70 and 42,817.40

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Solution

The fourth proportional to 136,311.80, 204,467.70 and 42,817.40 is: 64,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,311.80 : 204,467.70 = 42,817.40 : x
  2. Step 2: Convert to fraction form
    136,311.80/204,467.70 = 42,817.40/x
  3. Step 3: Cross multiply
    136,311.80x = 204,467.70 × 42,817.40
  4. Step 4: Simplify right side
    136,311.80x = 8,754,775,297.98
  5. Step 5: Solve for x
    x = 8,754,775,297.98/136,311.80
  6. Step 6: Final answer
    x = 64,226.10

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