Home / 214,072.46-321,145.79-71,931.60

Finding the Fourth Proportional to 214,072.46, 321,145.79 and 71,931.60

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Solution

The fourth proportional to 214,072.46, 321,145.79 and 71,931.60 is: 107,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,072.46 : 321,145.79 = 71,931.60 : x
  2. Step 2: Convert to fraction form
    214,072.46/321,145.79 = 71,931.60/x
  3. Step 3: Cross multiply
    214,072.46x = 321,145.79 × 71,931.60
  4. Step 4: Simplify right side
    214,072.46x = 23,100,530,507.96
  5. Step 5: Solve for x
    x = 23,100,530,507.96/214,072.46
  6. Step 6: Final answer
    x = 107,909.87

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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.