Home / 135,183.09-186,536.38-74,745.57

Finding the Fourth Proportional to 135,183.09, 186,536.38 and 74,745.57

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Solution

The fourth proportional to 135,183.09, 186,536.38 and 74,745.57 is: 103,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,183.09 : 186,536.38 = 74,745.57 : x
  2. Step 2: Convert to fraction form
    135,183.09/186,536.38 = 74,745.57/x
  3. Step 3: Cross multiply
    135,183.09x = 186,536.38 × 74,745.57
  4. Step 4: Simplify right side
    135,183.09x = 13,942,768,048.84
  5. Step 5: Solve for x
    x = 13,942,768,048.84/135,183.09
  6. Step 6: Final answer
    x = 103,139.88

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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.