Home / 135,012.03-186,318.17-74,581.43

Finding the Fourth Proportional to 135,012.03, 186,318.17 and 74,581.43

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Solution

The fourth proportional to 135,012.03, 186,318.17 and 74,581.43 is: 102,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,012.03 : 186,318.17 = 74,581.43 : x
  2. Step 2: Convert to fraction form
    135,012.03/186,318.17 = 74,581.43/x
  3. Step 3: Cross multiply
    135,012.03x = 186,318.17 × 74,581.43
  4. Step 4: Simplify right side
    135,012.03x = 13,895,874,249.09
  5. Step 5: Solve for x
    x = 13,895,874,249.09/135,012.03
  6. Step 6: Final answer
    x = 102,923.23

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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.