Home / 109,190.20-163,785.30-74,198.20

Finding the Fourth Proportional to 109,190.20, 163,785.30 and 74,198.20

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Solution

The fourth proportional to 109,190.20, 163,785.30 and 74,198.20 is: 111,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,190.20 : 163,785.30 = 74,198.20 : x
  2. Step 2: Convert to fraction form
    109,190.20/163,785.30 = 74,198.20/x
  3. Step 3: Cross multiply
    109,190.20x = 163,785.30 × 74,198.20
  4. Step 4: Simplify right side
    109,190.20x = 12,152,574,446.46
  5. Step 5: Solve for x
    x = 12,152,574,446.46/109,190.20
  6. Step 6: Final answer
    x = 111,297.30

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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.