Home / 110,724.20-166,086.30-81,199.70

Finding the Fourth Proportional to 110,724.20, 166,086.30 and 81,199.70

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Solution

The fourth proportional to 110,724.20, 166,086.30 and 81,199.70 is: 121,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,724.20 : 166,086.30 = 81,199.70 : x
  2. Step 2: Convert to fraction form
    110,724.20/166,086.30 = 81,199.70/x
  3. Step 3: Cross multiply
    110,724.20x = 166,086.30 × 81,199.70
  4. Step 4: Simplify right side
    110,724.20x = 13,486,157,734.11
  5. Step 5: Solve for x
    x = 13,486,157,734.11/110,724.20
  6. Step 6: Final answer
    x = 121,799.55

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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.