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Finding the Fourth Proportional to 156,910.80, 216,586.44 and 100,322.40

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Solution

The fourth proportional to 156,910.80, 216,586.44 and 100,322.40 is: 138,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,910.80 : 216,586.44 = 100,322.40 : x
  2. Step 2: Convert to fraction form
    156,910.80/216,586.44 = 100,322.40/x
  3. Step 3: Cross multiply
    156,910.80x = 216,586.44 × 100,322.40
  4. Step 4: Simplify right side
    156,910.80x = 21,728,471,468.26
  5. Step 5: Solve for x
    x = 21,728,471,468.26/156,910.80
  6. Step 6: Final answer
    x = 138,476.58

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