Home / 120,504.40-166,296.42-66,790.30

Finding the Fourth Proportional to 120,504.40, 166,296.42 and 66,790.30

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Solution

The fourth proportional to 120,504.40, 166,296.42 and 66,790.30 is: 92,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,504.40 : 166,296.42 = 66,790.30 : x
  2. Step 2: Convert to fraction form
    120,504.40/166,296.42 = 66,790.30/x
  3. Step 3: Cross multiply
    120,504.40x = 166,296.42 × 66,790.30
  4. Step 4: Simplify right side
    120,504.40x = 11,106,987,780.73
  5. Step 5: Solve for x
    x = 11,106,987,780.73/120,504.40
  6. Step 6: Final answer
    x = 92,170.81

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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.