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Finding the Fourth Proportional to 104,698.66, 156,988.47 and 71,459

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Solution

The fourth proportional to 104,698.66, 156,988.47 and 71,459 is: 107,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,698.66 : 156,988.47 = 71,459 : x
  2. Step 2: Convert to fraction form
    104,698.66/156,988.47 = 71,459/x
  3. Step 3: Cross multiply
    104,698.66x = 156,988.47 × 71,459
  4. Step 4: Simplify right side
    104,698.66x = 11,218,239,077.73
  5. Step 5: Solve for x
    x = 11,218,239,077.73/104,698.66
  6. Step 6: Final answer
    x = 107,147.88

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