Home / 160,084.87-220,917.81-87,489.25

Finding the Fourth Proportional to 160,084.87, 220,917.81 and 87,489.25

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Solution

The fourth proportional to 160,084.87, 220,917.81 and 87,489.25 is: 120,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,084.87 : 220,917.81 = 87,489.25 : x
  2. Step 2: Convert to fraction form
    160,084.87/220,917.81 = 87,489.25/x
  3. Step 3: Cross multiply
    160,084.87x = 220,917.81 × 87,489.25
  4. Step 4: Simplify right side
    160,084.87x = 19,327,933,508.54
  5. Step 5: Solve for x
    x = 19,327,933,508.54/160,084.87
  6. Step 6: Final answer
    x = 120,735.54

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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.