Home / 135,169.09-186,525.82-74,736.10

Finding the Fourth Proportional to 135,169.09, 186,525.82 and 74,736.10

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Solution

The fourth proportional to 135,169.09, 186,525.82 and 74,736.10 is: 103,131.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,169.09 : 186,525.82 = 74,736.10 : x
  2. Step 2: Convert to fraction form
    135,169.09/186,525.82 = 74,736.10/x
  3. Step 3: Cross multiply
    135,169.09x = 186,525.82 × 74,736.10
  4. Step 4: Simplify right side
    135,169.09x = 13,940,212,662.68
  5. Step 5: Solve for x
    x = 13,940,212,662.68/135,169.09
  6. Step 6: Final answer
    x = 103,131.66

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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.