Home / 135,173.82-186,536.94-74,747.04

Finding the Fourth Proportional to 135,173.82, 186,536.94 and 74,747.04

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Solution

The fourth proportional to 135,173.82, 186,536.94 and 74,747.04 is: 103,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,173.82 : 186,536.94 = 74,747.04 : x
  2. Step 2: Convert to fraction form
    135,173.82/186,536.94 = 74,747.04/x
  3. Step 3: Cross multiply
    135,173.82x = 186,536.94 × 74,747.04
  4. Step 4: Simplify right side
    135,173.82x = 13,943,084,115.66
  5. Step 5: Solve for x
    x = 13,943,084,115.66/135,173.82
  6. Step 6: Final answer
    x = 103,149.29

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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.