Home / 212,035.97-318,093.35-69,891.22

Finding the Fourth Proportional to 212,035.97, 318,093.35 and 69,891.22

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Solution

The fourth proportional to 212,035.97, 318,093.35 and 69,891.22 is: 104,849.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,035.97 : 318,093.35 = 69,891.22 : x
  2. Step 2: Convert to fraction form
    212,035.97/318,093.35 = 69,891.22/x
  3. Step 3: Cross multiply
    212,035.97x = 318,093.35 × 69,891.22
  4. Step 4: Simplify right side
    212,035.97x = 22,231,932,305.39
  5. Step 5: Solve for x
    x = 22,231,932,305.39/212,035.97
  6. Step 6: Final answer
    x = 104,849.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.