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Finding the Fourth Proportional to 120,524.64, 166,306.52 and 66,809.63

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Solution

The fourth proportional to 120,524.64, 166,306.52 and 66,809.63 is: 92,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,524.64 : 166,306.52 = 66,809.63 : x
  2. Step 2: Convert to fraction form
    120,524.64/166,306.52 = 66,809.63/x
  3. Step 3: Cross multiply
    120,524.64x = 166,306.52 × 66,809.63
  4. Step 4: Simplify right side
    120,524.64x = 11,110,876,403.28
  5. Step 5: Solve for x
    x = 11,110,876,403.28/120,524.64
  6. Step 6: Final answer
    x = 92,187.59

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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.