Home / 143,286.60-214,929.68-38,105.57

Finding the Fourth Proportional to 143,286.60, 214,929.68 and 38,105.57

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Solution

The fourth proportional to 143,286.60, 214,929.68 and 38,105.57 is: 57,158.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,286.60 : 214,929.68 = 38,105.57 : x
  2. Step 2: Convert to fraction form
    143,286.60/214,929.68 = 38,105.57/x
  3. Step 3: Cross multiply
    143,286.60x = 214,929.68 × 38,105.57
  4. Step 4: Simplify right side
    143,286.60x = 8,190,016,701.14
  5. Step 5: Solve for x
    x = 8,190,016,701.14/143,286.60
  6. Step 6: Final answer
    x = 57,158.29

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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.