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Finding the Fourth Proportional to 235,643.72, 353,251.13 and 85,849.88

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Solution

The fourth proportional to 235,643.72, 353,251.13 and 85,849.88 is: 128,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,643.72 : 353,251.13 = 85,849.88 : x
  2. Step 2: Convert to fraction form
    235,643.72/353,251.13 = 85,849.88/x
  3. Step 3: Cross multiply
    235,643.72x = 353,251.13 × 85,849.88
  4. Step 4: Simplify right side
    235,643.72x = 30,326,564,924.86
  5. Step 5: Solve for x
    x = 30,326,564,924.86/235,643.72
  6. Step 6: Final answer
    x = 128,696.68

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