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Finding the Fourth Proportional to 139,330.08, 208,967.16 and 68,222.08

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Solution

The fourth proportional to 139,330.08, 208,967.16 and 68,222.08 is: 102,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,330.08 : 208,967.16 = 68,222.08 : x
  2. Step 2: Convert to fraction form
    139,330.08/208,967.16 = 68,222.08/x
  3. Step 3: Cross multiply
    139,330.08x = 208,967.16 × 68,222.08
  4. Step 4: Simplify right side
    139,330.08x = 14,256,174,306.89
  5. Step 5: Solve for x
    x = 14,256,174,306.89/139,330.08
  6. Step 6: Final answer
    x = 102,319.43

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