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Finding the Fourth Proportional to 120,507.92, 166,297.20 and 66,795.20

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Solution

The fourth proportional to 120,507.92, 166,297.20 and 66,795.20 is: 92,175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,507.92 : 166,297.20 = 66,795.20 : x
  2. Step 2: Convert to fraction form
    120,507.92/166,297.20 = 66,795.20/x
  3. Step 3: Cross multiply
    120,507.92x = 166,297.20 × 66,795.20
  4. Step 4: Simplify right side
    120,507.92x = 11,107,854,733.44
  5. Step 5: Solve for x
    x = 11,107,854,733.44/120,507.92
  6. Step 6: Final answer
    x = 92,175.31

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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.