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Finding the Fourth Proportional to 120,480.88, 166,267.25 and 66,760.87

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Solution

The fourth proportional to 120,480.88, 166,267.25 and 66,760.87 is: 92,132.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,480.88 : 166,267.25 = 66,760.87 : x
  2. Step 2: Convert to fraction form
    120,480.88/166,267.25 = 66,760.87/x
  3. Step 3: Cross multiply
    120,480.88x = 166,267.25 × 66,760.87
  4. Step 4: Simplify right side
    120,480.88x = 11,100,146,262.51
  5. Step 5: Solve for x
    x = 11,100,146,262.51/120,480.88
  6. Step 6: Final answer
    x = 92,132.02

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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.