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Finding the Fourth Proportional to 202,260.72, 278,961.90 and 129,670.40

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Solution

The fourth proportional to 202,260.72, 278,961.90 and 129,670.40 is: 178,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,260.72 : 278,961.90 = 129,670.40 : x
  2. Step 2: Convert to fraction form
    202,260.72/278,961.90 = 129,670.40/x
  3. Step 3: Cross multiply
    202,260.72x = 278,961.90 × 129,670.40
  4. Step 4: Simplify right side
    202,260.72x = 36,173,101,157.76
  5. Step 5: Solve for x
    x = 36,173,101,157.76/202,260.72
  6. Step 6: Final answer
    x = 178,843.93

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