Home / 110,855.10-166,282.65-81,330.60

Finding the Fourth Proportional to 110,855.10, 166,282.65 and 81,330.60

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Solution

The fourth proportional to 110,855.10, 166,282.65 and 81,330.60 is: 121,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,855.10 : 166,282.65 = 81,330.60 : x
  2. Step 2: Convert to fraction form
    110,855.10/166,282.65 = 81,330.60/x
  3. Step 3: Cross multiply
    110,855.10x = 166,282.65 × 81,330.60
  4. Step 4: Simplify right side
    110,855.10x = 13,523,867,694.09
  5. Step 5: Solve for x
    x = 13,523,867,694.09/110,855.10
  6. Step 6: Final answer
    x = 121,995.90

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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.