Home / 147,202.20-220,544.10-120,763.80

Finding the Fourth Proportional to 147,202.20, 220,544.10 and 120,763.80

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Solution

The fourth proportional to 147,202.20, 220,544.10 and 120,763.80 is: 180,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,202.20 : 220,544.10 = 120,763.80 : x
  2. Step 2: Convert to fraction form
    147,202.20/220,544.10 = 120,763.80/x
  3. Step 3: Cross multiply
    147,202.20x = 220,544.10 × 120,763.80
  4. Step 4: Simplify right side
    147,202.20x = 26,633,743,583.58
  5. Step 5: Solve for x
    x = 26,633,743,583.58/147,202.20
  6. Step 6: Final answer
    x = 180,933.05

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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.