Home / 135,456.36-203,309.24-68,944

Finding the Fourth Proportional to 135,456.36, 203,309.24 and 68,944

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Solution

The fourth proportional to 135,456.36, 203,309.24 and 68,944 is: 103,479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,456.36 : 203,309.24 = 68,944 : x
  2. Step 2: Convert to fraction form
    135,456.36/203,309.24 = 68,944/x
  3. Step 3: Cross multiply
    135,456.36x = 203,309.24 × 68,944
  4. Step 4: Simplify right side
    135,456.36x = 14,016,952,242.56
  5. Step 5: Solve for x
    x = 14,016,952,242.56/135,456.36
  6. Step 6: Final answer
    x = 103,479.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.