Home / 214,068.48-321,149.70-71,908.62

Finding the Fourth Proportional to 214,068.48, 321,149.70 and 71,908.62

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Solution

The fourth proportional to 214,068.48, 321,149.70 and 71,908.62 is: 107,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,068.48 : 321,149.70 = 71,908.62 : x
  2. Step 2: Convert to fraction form
    214,068.48/321,149.70 = 71,908.62/x
  3. Step 3: Cross multiply
    214,068.48x = 321,149.70 × 71,908.62
  4. Step 4: Simplify right side
    214,068.48x = 23,093,431,740.41
  5. Step 5: Solve for x
    x = 23,093,431,740.41/214,068.48
  6. Step 6: Final answer
    x = 107,878.71

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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.