Home / 120,650.56-166,498.16-66,936.64

Finding the Fourth Proportional to 120,650.56, 166,498.16 and 66,936.64

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Solution

The fourth proportional to 120,650.56, 166,498.16 and 66,936.64 is: 92,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,650.56 : 166,498.16 = 66,936.64 : x
  2. Step 2: Convert to fraction form
    120,650.56/166,498.16 = 66,936.64/x
  3. Step 3: Cross multiply
    120,650.56x = 166,498.16 × 66,936.64
  4. Step 4: Simplify right side
    120,650.56x = 11,144,827,396.58
  5. Step 5: Solve for x
    x = 11,144,827,396.58/120,650.56
  6. Step 6: Final answer
    x = 92,372.78

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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.