Home / 214,410.06-321,388.11-72,119.88

Finding the Fourth Proportional to 214,410.06, 321,388.11 and 72,119.88

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Solution

The fourth proportional to 214,410.06, 321,388.11 and 72,119.88 is: 108,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,410.06 : 321,388.11 = 72,119.88 : x
  2. Step 2: Convert to fraction form
    214,410.06/321,388.11 = 72,119.88/x
  3. Step 3: Cross multiply
    214,410.06x = 321,388.11 × 72,119.88
  4. Step 4: Simplify right side
    214,410.06x = 23,178,471,926.63
  5. Step 5: Solve for x
    x = 23,178,471,926.63/214,410.06
  6. Step 6: Final answer
    x = 108,103.47

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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.