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Finding the Fourth Proportional to 168,919.45, 253,378.86 and 80,124.46

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Solution

The fourth proportional to 168,919.45, 253,378.86 and 80,124.46 is: 120,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,919.45 : 253,378.86 = 80,124.46 : x
  2. Step 2: Convert to fraction form
    168,919.45/253,378.86 = 80,124.46/x
  3. Step 3: Cross multiply
    168,919.45x = 253,378.86 × 80,124.46
  4. Step 4: Simplify right side
    168,919.45x = 20,301,844,332.92
  5. Step 5: Solve for x
    x = 20,301,844,332.92/168,919.45
  6. Step 6: Final answer
    x = 120,186.54

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