Home / 135,770.64-187,369.38-90,375.54

Finding the Fourth Proportional to 135,770.64, 187,369.38 and 90,375.54

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Solution

The fourth proportional to 135,770.64, 187,369.38 and 90,375.54 is: 124,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,770.64 : 187,369.38 = 90,375.54 : x
  2. Step 2: Convert to fraction form
    135,770.64/187,369.38 = 90,375.54/x
  3. Step 3: Cross multiply
    135,770.64x = 187,369.38 × 90,375.54
  4. Step 4: Simplify right side
    135,770.64x = 16,933,608,896.97
  5. Step 5: Solve for x
    x = 16,933,608,896.97/135,770.64
  6. Step 6: Final answer
    x = 124,722.17

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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.