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Finding the Fourth Proportional to 157,978, 236,975.64 and 47,178.64

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Solution

The fourth proportional to 157,978, 236,975.64 and 47,178.64 is: 70,770.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,978 : 236,975.64 = 47,178.64 : x
  2. Step 2: Convert to fraction form
    157,978/236,975.64 = 47,178.64/x
  3. Step 3: Cross multiply
    157,978x = 236,975.64 × 47,178.64
  4. Step 4: Simplify right side
    157,978x = 11,180,188,408.33
  5. Step 5: Solve for x
    x = 11,180,188,408.33/157,978
  6. Step 6: Final answer
    x = 70,770.54

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Why These Related Problems?

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