Home / 120,696.11-166,562.43-66,984.60

Finding the Fourth Proportional to 120,696.11, 166,562.43 and 66,984.60

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Solution

The fourth proportional to 120,696.11, 166,562.43 and 66,984.60 is: 92,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,696.11 : 166,562.43 = 66,984.60 : x
  2. Step 2: Convert to fraction form
    120,696.11/166,562.43 = 66,984.60/x
  3. Step 3: Cross multiply
    120,696.11x = 166,562.43 × 66,984.60
  4. Step 4: Simplify right side
    120,696.11x = 11,157,117,748.58
  5. Step 5: Solve for x
    x = 11,157,117,748.58/120,696.11
  6. Step 6: Final answer
    x = 92,439.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.