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Finding the Fourth Proportional to 102,158.35, 140,898.64 and 66,359.89

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Solution

The fourth proportional to 102,158.35, 140,898.64 and 66,359.89 is: 91,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,158.35 : 140,898.64 = 66,359.89 : x
  2. Step 2: Convert to fraction form
    102,158.35/140,898.64 = 66,359.89/x
  3. Step 3: Cross multiply
    102,158.35x = 140,898.64 × 66,359.89
  4. Step 4: Simplify right side
    102,158.35x = 9,350,018,386.20
  5. Step 5: Solve for x
    x = 9,350,018,386.20/102,158.35
  6. Step 6: Final answer
    x = 91,524.76

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