Home / 220,621.15-330,701.32-108,145.63

Finding the Fourth Proportional to 220,621.15, 330,701.32 and 108,145.63

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Solution

The fourth proportional to 220,621.15, 330,701.32 and 108,145.63 is: 162,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,621.15 : 330,701.32 = 108,145.63 : x
  2. Step 2: Convert to fraction form
    220,621.15/330,701.32 = 108,145.63/x
  3. Step 3: Cross multiply
    220,621.15x = 330,701.32 × 108,145.63
  4. Step 4: Simplify right side
    220,621.15x = 35,763,900,399.00
  5. Step 5: Solve for x
    x = 35,763,900,399.00/220,621.15
  6. Step 6: Final answer
    x = 162,105.50

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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.