Home / 225,736.97-311,548.75-139,723.54

Finding the Fourth Proportional to 225,736.97, 311,548.75 and 139,723.54

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Solution

The fourth proportional to 225,736.97, 311,548.75 and 139,723.54 is: 192,838.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,736.97 : 311,548.75 = 139,723.54 : x
  2. Step 2: Convert to fraction form
    225,736.97/311,548.75 = 139,723.54/x
  3. Step 3: Cross multiply
    225,736.97x = 311,548.75 × 139,723.54
  4. Step 4: Simplify right side
    225,736.97x = 43,530,693,104.39
  5. Step 5: Solve for x
    x = 43,530,693,104.39/225,736.97
  6. Step 6: Final answer
    x = 192,838.13

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1.5x scale

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.