Home / 161,540.85-222,922.49-89,919.37

Finding the Fourth Proportional to 161,540.85, 222,922.49 and 89,919.37

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Solution

The fourth proportional to 161,540.85, 222,922.49 and 89,919.37 is: 124,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,540.85 : 222,922.49 = 89,919.37 : x
  2. Step 2: Convert to fraction form
    161,540.85/222,922.49 = 89,919.37/x
  3. Step 3: Cross multiply
    161,540.85x = 222,922.49 × 89,919.37
  4. Step 4: Simplify right side
    161,540.85x = 20,045,049,859.63
  5. Step 5: Solve for x
    x = 20,045,049,859.63/161,540.85
  6. Step 6: Final answer
    x = 124,086.57

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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.