Home / 135,708.75-203,564.43-51,446.25

Finding the Fourth Proportional to 135,708.75, 203,564.43 and 51,446.25

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Solution

The fourth proportional to 135,708.75, 203,564.43 and 51,446.25 is: 77,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,708.75 : 203,564.43 = 51,446.25 : x
  2. Step 2: Convert to fraction form
    135,708.75/203,564.43 = 51,446.25/x
  3. Step 3: Cross multiply
    135,708.75x = 203,564.43 × 51,446.25
  4. Step 4: Simplify right side
    135,708.75x = 10,472,626,556.89
  5. Step 5: Solve for x
    x = 10,472,626,556.89/135,708.75
  6. Step 6: Final answer
    x = 77,169.87

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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.