Home / 214,157.24-321,009.81-71,867.61

Finding the Fourth Proportional to 214,157.24, 321,009.81 and 71,867.61

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Solution

The fourth proportional to 214,157.24, 321,009.81 and 71,867.61 is: 107,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,157.24 : 321,009.81 = 71,867.61 : x
  2. Step 2: Convert to fraction form
    214,157.24/321,009.81 = 71,867.61/x
  3. Step 3: Cross multiply
    214,157.24x = 321,009.81 × 71,867.61
  4. Step 4: Simplify right side
    214,157.24x = 23,070,207,831.25
  5. Step 5: Solve for x
    x = 23,070,207,831.25/214,157.24
  6. Step 6: Final answer
    x = 107,725.56

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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.