Home / 129,201.28-193,722.72-50,223.36

Finding the Fourth Proportional to 129,201.28, 193,722.72 and 50,223.36

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Solution

The fourth proportional to 129,201.28, 193,722.72 and 50,223.36 is: 75,304.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,201.28 : 193,722.72 = 50,223.36 : x
  2. Step 2: Convert to fraction form
    129,201.28/193,722.72 = 50,223.36/x
  3. Step 3: Cross multiply
    129,201.28x = 193,722.72 × 50,223.36
  4. Step 4: Simplify right side
    129,201.28x = 9,729,405,906.74
  5. Step 5: Solve for x
    x = 9,729,405,906.74/129,201.28
  6. Step 6: Final answer
    x = 75,304.25

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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.