Home / 214,723.82-321,985.73-79,693.85

Finding the Fourth Proportional to 214,723.82, 321,985.73 and 79,693.85

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Solution

The fourth proportional to 214,723.82, 321,985.73 and 79,693.85 is: 119,503.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,723.82 : 321,985.73 = 79,693.85 : x
  2. Step 2: Convert to fraction form
    214,723.82/321,985.73 = 79,693.85/x
  3. Step 3: Cross multiply
    214,723.82x = 321,985.73 × 79,693.85
  4. Step 4: Simplify right side
    214,723.82x = 25,660,282,468.76
  5. Step 5: Solve for x
    x = 25,660,282,468.76/214,723.82
  6. Step 6: Final answer
    x = 119,503.66

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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.