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Finding the Fourth Proportional to 120,477.50, 166,262.60 and 66,757.49

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Solution

The fourth proportional to 120,477.50, 166,262.60 and 66,757.49 is: 92,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,477.50 : 166,262.60 = 66,757.49 : x
  2. Step 2: Convert to fraction form
    120,477.50/166,262.60 = 66,757.49/x
  3. Step 3: Cross multiply
    120,477.50x = 166,262.60 × 66,757.49
  4. Step 4: Simplify right side
    120,477.50x = 11,099,273,523.09
  5. Step 5: Solve for x
    x = 11,099,273,523.09/120,477.50
  6. Step 6: Final answer
    x = 92,127.36

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1.5x scale

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.