Home / 120,591.45-166,426.43-66,893.77

Finding the Fourth Proportional to 120,591.45, 166,426.43 and 66,893.77

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Solution

The fourth proportional to 120,591.45, 166,426.43 and 66,893.77 is: 92,319.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,591.45 : 166,426.43 = 66,893.77 : x
  2. Step 2: Convert to fraction form
    120,591.45/166,426.43 = 66,893.77/x
  3. Step 3: Cross multiply
    120,591.45x = 166,426.43 × 66,893.77
  4. Step 4: Simplify right side
    120,591.45x = 11,132,890,644.03
  5. Step 5: Solve for x
    x = 11,132,890,644.03/120,591.45
  6. Step 6: Final answer
    x = 92,319.07

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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.