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Finding the Fourth Proportional to 107,715.30, 161,538.93 and 99,710.88

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Solution

The fourth proportional to 107,715.30, 161,538.93 and 99,710.88 is: 149,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,715.30 : 161,538.93 = 99,710.88 : x
  2. Step 2: Convert to fraction form
    107,715.30/161,538.93 = 99,710.88/x
  3. Step 3: Cross multiply
    107,715.30x = 161,538.93 × 99,710.88
  4. Step 4: Simplify right side
    107,715.30x = 16,107,188,864.56
  5. Step 5: Solve for x
    x = 16,107,188,864.56/107,715.30
  6. Step 6: Final answer
    x = 149,534.83

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