Home / 110,982.22-166,515.24-66,639.78

Finding the Fourth Proportional to 110,982.22, 166,515.24 and 66,639.78

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Solution

The fourth proportional to 110,982.22, 166,515.24 and 66,639.78 is: 99,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,982.22 : 166,515.24 = 66,639.78 : x
  2. Step 2: Convert to fraction form
    110,982.22/166,515.24 = 66,639.78/x
  3. Step 3: Cross multiply
    110,982.22x = 166,515.24 × 66,639.78
  4. Step 4: Simplify right side
    110,982.22x = 11,096,539,210.15
  5. Step 5: Solve for x
    x = 11,096,539,210.15/110,982.22
  6. Step 6: Final answer
    x = 99,984.84

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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.