Home / 121,145.82-167,181.22-67,429.68

Finding the Fourth Proportional to 121,145.82, 167,181.22 and 67,429.68

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Solution

The fourth proportional to 121,145.82, 167,181.22 and 67,429.68 is: 93,052.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,145.82 : 167,181.22 = 67,429.68 : x
  2. Step 2: Convert to fraction form
    121,145.82/167,181.22 = 67,429.68/x
  3. Step 3: Cross multiply
    121,145.82x = 167,181.22 × 67,429.68
  4. Step 4: Simplify right side
    121,145.82x = 11,272,974,993.56
  5. Step 5: Solve for x
    x = 11,272,974,993.56/121,145.82
  6. Step 6: Final answer
    x = 93,052.94

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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.