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Finding the Fourth Proportional to 120,504.03, 166,292.98 and 66,788.56

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Solution

The fourth proportional to 120,504.03, 166,292.98 and 66,788.56 is: 92,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,504.03 : 166,292.98 = 66,788.56 : x
  2. Step 2: Convert to fraction form
    120,504.03/166,292.98 = 66,788.56/x
  3. Step 3: Cross multiply
    120,504.03x = 166,292.98 × 66,788.56
  4. Step 4: Simplify right side
    120,504.03x = 11,106,468,672.31
  5. Step 5: Solve for x
    x = 11,106,468,672.31/120,504.03
  6. Step 6: Final answer
    x = 92,166.78

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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.