Home / 213,744.40-320,179.20-108,622.60

Finding the Fourth Proportional to 213,744.40, 320,179.20 and 108,622.60

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Solution

The fourth proportional to 213,744.40, 320,179.20 and 108,622.60 is: 162,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,744.40 : 320,179.20 = 108,622.60 : x
  2. Step 2: Convert to fraction form
    213,744.40/320,179.20 = 108,622.60/x
  3. Step 3: Cross multiply
    213,744.40x = 320,179.20 × 108,622.60
  4. Step 4: Simplify right side
    213,744.40x = 34,778,697,169.92
  5. Step 5: Solve for x
    x = 34,778,697,169.92/213,744.40
  6. Step 6: Final answer
    x = 162,711.62

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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.