Home / 209,033.48-313,633.24-66,900.56

Finding the Fourth Proportional to 209,033.48, 313,633.24 and 66,900.56

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Solution

The fourth proportional to 209,033.48, 313,633.24 and 66,900.56 is: 100,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,033.48 : 313,633.24 = 66,900.56 : x
  2. Step 2: Convert to fraction form
    209,033.48/313,633.24 = 66,900.56/x
  3. Step 3: Cross multiply
    209,033.48x = 313,633.24 × 66,900.56
  4. Step 4: Simplify right side
    209,033.48x = 20,982,239,390.61
  5. Step 5: Solve for x
    x = 20,982,239,390.61/209,033.48
  6. Step 6: Final answer
    x = 100,377.41

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1.5x scale

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.