Home / 110,723.20-166,084.80-81,198.70

Finding the Fourth Proportional to 110,723.20, 166,084.80 and 81,198.70

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Solution

The fourth proportional to 110,723.20, 166,084.80 and 81,198.70 is: 121,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,723.20 : 166,084.80 = 81,198.70 : x
  2. Step 2: Convert to fraction form
    110,723.20/166,084.80 = 81,198.70/x
  3. Step 3: Cross multiply
    110,723.20x = 166,084.80 × 81,198.70
  4. Step 4: Simplify right side
    110,723.20x = 13,485,869,849.76
  5. Step 5: Solve for x
    x = 13,485,869,849.76/110,723.20
  6. Step 6: Final answer
    x = 121,798.05

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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.