Home / 135,251.82-186,653-74,821.42

Finding the Fourth Proportional to 135,251.82, 186,653 and 74,821.42

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Solution

The fourth proportional to 135,251.82, 186,653 and 74,821.42 is: 103,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,251.82 : 186,653 = 74,821.42 : x
  2. Step 2: Convert to fraction form
    135,251.82/186,653 = 74,821.42/x
  3. Step 3: Cross multiply
    135,251.82x = 186,653 × 74,821.42
  4. Step 4: Simplify right side
    135,251.82x = 13,965,642,507.26
  5. Step 5: Solve for x
    x = 13,965,642,507.26/135,251.82
  6. Step 6: Final answer
    x = 103,256.60

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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.