Home / 209,190.52-313,687.23-75,976.84

Finding the Fourth Proportional to 209,190.52, 313,687.23 and 75,976.84

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Solution

The fourth proportional to 209,190.52, 313,687.23 and 75,976.84 is: 113,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,190.52 : 313,687.23 = 75,976.84 : x
  2. Step 2: Convert to fraction form
    209,190.52/313,687.23 = 75,976.84/x
  3. Step 3: Cross multiply
    209,190.52x = 313,687.23 × 75,976.84
  4. Step 4: Simplify right side
    209,190.52x = 23,832,964,483.75
  5. Step 5: Solve for x
    x = 23,832,964,483.75/209,190.52
  6. Step 6: Final answer
    x = 113,929.47

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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.