Home / 110,880.22-166,361.64-66,538.78

Finding the Fourth Proportional to 110,880.22, 166,361.64 and 66,538.78

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Solution

The fourth proportional to 110,880.22, 166,361.64 and 66,538.78 is: 99,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,880.22 : 166,361.64 = 66,538.78 : x
  2. Step 2: Convert to fraction form
    110,880.22/166,361.64 = 66,538.78/x
  3. Step 3: Cross multiply
    110,880.22x = 166,361.64 × 66,538.78
  4. Step 4: Simplify right side
    110,880.22x = 11,069,500,564.40
  5. Step 5: Solve for x
    x = 11,069,500,564.40/110,880.22
  6. Step 6: Final answer
    x = 99,832.96

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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.