Home / 209,014.98-313,423.68-80,991.24

Finding the Fourth Proportional to 209,014.98, 313,423.68 and 80,991.24

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Solution

The fourth proportional to 209,014.98, 313,423.68 and 80,991.24 is: 121,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,014.98 : 313,423.68 = 80,991.24 : x
  2. Step 2: Convert to fraction form
    209,014.98/313,423.68 = 80,991.24/x
  3. Step 3: Cross multiply
    209,014.98x = 313,423.68 × 80,991.24
  4. Step 4: Simplify right side
    209,014.98x = 25,384,572,488.56
  5. Step 5: Solve for x
    x = 25,384,572,488.56/209,014.98
  6. Step 6: Final answer
    x = 121,448.58

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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.