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Finding the Fourth Proportional to 154.03, 230.77 and 72.70

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Solution

The fourth proportional to 154.03, 230.77 and 72.70 is: 108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.03 : 230.77 = 72.70 : x
  2. Step 2: Convert to fraction form
    154.03/230.77 = 72.70/x
  3. Step 3: Cross multiply
    154.03x = 230.77 × 72.70
  4. Step 4: Simplify right side
    154.03x = 16,776.98
  5. Step 5: Solve for x
    x = 16,776.98/154.03
  6. Step 6: Final answer
    x = 108.92

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