Home / 161,074.53-222,448.20-120,724.38

Finding the Fourth Proportional to 161,074.53, 222,448.20 and 120,724.38

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Solution

The fourth proportional to 161,074.53, 222,448.20 and 120,724.38 is: 166,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,074.53 : 222,448.20 = 120,724.38 : x
  2. Step 2: Convert to fraction form
    161,074.53/222,448.20 = 120,724.38/x
  3. Step 3: Cross multiply
    161,074.53x = 222,448.20 × 120,724.38
  4. Step 4: Simplify right side
    161,074.53x = 26,854,921,027.12
  5. Step 5: Solve for x
    x = 26,854,921,027.12/161,074.53
  6. Step 6: Final answer
    x = 166,723.57

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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.