Home / 222,742.68-307,387-120,767.88

Finding the Fourth Proportional to 222,742.68, 307,387 and 120,767.88

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Solution

The fourth proportional to 222,742.68, 307,387 and 120,767.88 is: 166,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,742.68 : 307,387 = 120,767.88 : x
  2. Step 2: Convert to fraction form
    222,742.68/307,387 = 120,767.88/x
  3. Step 3: Cross multiply
    222,742.68x = 307,387 × 120,767.88
  4. Step 4: Simplify right side
    222,742.68x = 37,122,476,329.56
  5. Step 5: Solve for x
    x = 37,122,476,329.56/222,742.68
  6. Step 6: Final answer
    x = 166,660.81

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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.