Home / 135,272.70-186,736.10-80,844.06

Finding the Fourth Proportional to 135,272.70, 186,736.10 and 80,844.06

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Solution

The fourth proportional to 135,272.70, 186,736.10 and 80,844.06 is: 111,600.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,272.70 : 186,736.10 = 80,844.06 : x
  2. Step 2: Convert to fraction form
    135,272.70/186,736.10 = 80,844.06/x
  3. Step 3: Cross multiply
    135,272.70x = 186,736.10 × 80,844.06
  4. Step 4: Simplify right side
    135,272.70x = 15,096,504,472.57
  5. Step 5: Solve for x
    x = 15,096,504,472.57/135,272.70
  6. Step 6: Final answer
    x = 111,600.53

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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.