Home / 214,729.15-321,992.55-79,699.66

Finding the Fourth Proportional to 214,729.15, 321,992.55 and 79,699.66

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Solution

The fourth proportional to 214,729.15, 321,992.55 and 79,699.66 is: 119,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,729.15 : 321,992.55 = 79,699.66 : x
  2. Step 2: Convert to fraction form
    214,729.15/321,992.55 = 79,699.66/x
  3. Step 3: Cross multiply
    214,729.15x = 321,992.55 × 79,699.66
  4. Step 4: Simplify right side
    214,729.15x = 25,662,696,757.53
  5. Step 5: Solve for x
    x = 25,662,696,757.53/214,729.15
  6. Step 6: Final answer
    x = 119,511.94

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1.5x scale

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.