Home / 209,845.86-314,861.67-109,982.13

Finding the Fourth Proportional to 209,845.86, 314,861.67 and 109,982.13

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Solution

The fourth proportional to 209,845.86, 314,861.67 and 109,982.13 is: 165,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,845.86 : 314,861.67 = 109,982.13 : x
  2. Step 2: Convert to fraction form
    209,845.86/314,861.67 = 109,982.13/x
  3. Step 3: Cross multiply
    209,845.86x = 314,861.67 × 109,982.13
  4. Step 4: Simplify right side
    209,845.86x = 34,629,157,121.96
  5. Step 5: Solve for x
    x = 34,629,157,121.96/209,845.86
  6. Step 6: Final answer
    x = 165,021.87

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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.