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Finding the Fourth Proportional to 153,313.89, 211,571.05 and 85,330.89

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Solution

The fourth proportional to 153,313.89, 211,571.05 and 85,330.89 is: 117,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,313.89 : 211,571.05 = 85,330.89 : x
  2. Step 2: Convert to fraction form
    153,313.89/211,571.05 = 85,330.89/x
  3. Step 3: Cross multiply
    153,313.89x = 211,571.05 × 85,330.89
  4. Step 4: Simplify right side
    153,313.89x = 18,053,544,988.02
  5. Step 5: Solve for x
    x = 18,053,544,988.02/153,313.89
  6. Step 6: Final answer
    x = 117,755.44

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