Home / 220,621.94-330,799.25-99,020.24

Finding the Fourth Proportional to 220,621.94, 330,799.25 and 99,020.24

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Solution

The fourth proportional to 220,621.94, 330,799.25 and 99,020.24 is: 148,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,621.94 : 330,799.25 = 99,020.24 : x
  2. Step 2: Convert to fraction form
    220,621.94/330,799.25 = 99,020.24/x
  3. Step 3: Cross multiply
    220,621.94x = 330,799.25 × 99,020.24
  4. Step 4: Simplify right side
    220,621.94x = 32,755,819,720.37
  5. Step 5: Solve for x
    x = 32,755,819,720.37/220,621.94
  6. Step 6: Final answer
    x = 148,470.37

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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.