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Finding the Fourth Proportional to 154,652.40, 213,438.08 and 86,687.76

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Solution

The fourth proportional to 154,652.40, 213,438.08 and 86,687.76 is: 119,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,652.40 : 213,438.08 = 86,687.76 : x
  2. Step 2: Convert to fraction form
    154,652.40/213,438.08 = 86,687.76/x
  3. Step 3: Cross multiply
    154,652.40x = 213,438.08 × 86,687.76
  4. Step 4: Simplify right side
    154,652.40x = 18,502,469,053.90
  5. Step 5: Solve for x
    x = 18,502,469,053.90/154,652.40
  6. Step 6: Final answer
    x = 119,639.07

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