Home / 109,245.20-163,867.79-30,360.11

Finding the Fourth Proportional to 109,245.20, 163,867.79 and 30,360.11

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Solution

The fourth proportional to 109,245.20, 163,867.79 and 30,360.11 is: 45,540.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,245.20 : 163,867.79 = 30,360.11 : x
  2. Step 2: Convert to fraction form
    109,245.20/163,867.79 = 30,360.11/x
  3. Step 3: Cross multiply
    109,245.20x = 163,867.79 × 30,360.11
  4. Step 4: Simplify right side
    109,245.20x = 4,975,043,158.72
  5. Step 5: Solve for x
    x = 4,975,043,158.72/109,245.20
  6. Step 6: Final answer
    x = 45,540.16

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Similar ratio
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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.