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Finding the Fourth Proportional to 131,502.90, 197,254.35 and 78,885.30

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Solution

The fourth proportional to 131,502.90, 197,254.35 and 78,885.30 is: 118,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,502.90 : 197,254.35 = 78,885.30 : x
  2. Step 2: Convert to fraction form
    131,502.90/197,254.35 = 78,885.30/x
  3. Step 3: Cross multiply
    131,502.90x = 197,254.35 × 78,885.30
  4. Step 4: Simplify right side
    131,502.90x = 15,560,468,576.06
  5. Step 5: Solve for x
    x = 15,560,468,576.06/131,502.90
  6. Step 6: Final answer
    x = 118,327.95

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