Home / 209,042.28-313,348.86-82,631.16

Finding the Fourth Proportional to 209,042.28, 313,348.86 and 82,631.16

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Solution

The fourth proportional to 209,042.28, 313,348.86 and 82,631.16 is: 123,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,042.28 : 313,348.86 = 82,631.16 : x
  2. Step 2: Convert to fraction form
    209,042.28/313,348.86 = 82,631.16/x
  3. Step 3: Cross multiply
    209,042.28x = 313,348.86 × 82,631.16
  4. Step 4: Simplify right side
    209,042.28x = 25,892,379,786.48
  5. Step 5: Solve for x
    x = 25,892,379,786.48/209,042.28
  6. Step 6: Final answer
    x = 123,861.93

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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.