Home / 223,105.44-307,887.78-121,131.84

Finding the Fourth Proportional to 223,105.44, 307,887.78 and 121,131.84

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Solution

The fourth proportional to 223,105.44, 307,887.78 and 121,131.84 is: 167,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,105.44 : 307,887.78 = 121,131.84 : x
  2. Step 2: Convert to fraction form
    223,105.44/307,887.78 = 121,131.84/x
  3. Step 3: Cross multiply
    223,105.44x = 307,887.78 × 121,131.84
  4. Step 4: Simplify right side
    223,105.44x = 37,295,013,304.92
  5. Step 5: Solve for x
    x = 37,295,013,304.92/223,105.44
  6. Step 6: Final answer
    x = 167,163.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.