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Finding the Fourth Proportional to 243,235.53, 364,872.75 and 85,499.37

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Solution

The fourth proportional to 243,235.53, 364,872.75 and 85,499.37 is: 128,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,235.53 : 364,872.75 = 85,499.37 : x
  2. Step 2: Convert to fraction form
    243,235.53/364,872.75 = 85,499.37/x
  3. Step 3: Cross multiply
    243,235.53x = 364,872.75 × 85,499.37
  4. Step 4: Simplify right side
    243,235.53x = 31,196,390,255.17
  5. Step 5: Solve for x
    x = 31,196,390,255.17/243,235.53
  6. Step 6: Final answer
    x = 128,255.89

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