Home / 161,380.87-222,716.73-89,767.56

Finding the Fourth Proportional to 161,380.87, 222,716.73 and 89,767.56

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Solution

The fourth proportional to 161,380.87, 222,716.73 and 89,767.56 is: 123,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,380.87 : 222,716.73 = 89,767.56 : x
  2. Step 2: Convert to fraction form
    161,380.87/222,716.73 = 89,767.56/x
  3. Step 3: Cross multiply
    161,380.87x = 222,716.73 × 89,767.56
  4. Step 4: Simplify right side
    161,380.87x = 19,992,737,423.28
  5. Step 5: Solve for x
    x = 19,992,737,423.28/161,380.87
  6. Step 6: Final answer
    x = 123,885.42

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1.5x scale

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.