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Finding the Fourth Proportional to 154,658.80, 231,815.40 and 65,897.20

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Solution

The fourth proportional to 154,658.80, 231,815.40 and 65,897.20 is: 98,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,658.80 : 231,815.40 = 65,897.20 : x
  2. Step 2: Convert to fraction form
    154,658.80/231,815.40 = 65,897.20/x
  3. Step 3: Cross multiply
    154,658.80x = 231,815.40 × 65,897.20
  4. Step 4: Simplify right side
    154,658.80x = 15,275,985,776.88
  5. Step 5: Solve for x
    x = 15,275,985,776.88/154,658.80
  6. Step 6: Final answer
    x = 98,772.17

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