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Finding the Fourth Proportional to 112,016.40, 167,830.20 and 72,553.20

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Solution

The fourth proportional to 112,016.40, 167,830.20 and 72,553.20 is: 108,703.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,016.40 : 167,830.20 = 72,553.20 : x
  2. Step 2: Convert to fraction form
    112,016.40/167,830.20 = 72,553.20/x
  3. Step 3: Cross multiply
    112,016.40x = 167,830.20 × 72,553.20
  4. Step 4: Simplify right side
    112,016.40x = 12,176,618,066.64
  5. Step 5: Solve for x
    x = 12,176,618,066.64/112,016.40
  6. Step 6: Final answer
    x = 108,703.89

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