Home / 120,449.52-166,221.66-66,735.38

Finding the Fourth Proportional to 120,449.52, 166,221.66 and 66,735.38

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Solution

The fourth proportional to 120,449.52, 166,221.66 and 66,735.38 is: 92,095.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,449.52 : 166,221.66 = 66,735.38 : x
  2. Step 2: Convert to fraction form
    120,449.52/166,221.66 = 66,735.38/x
  3. Step 3: Cross multiply
    120,449.52x = 166,221.66 × 66,735.38
  4. Step 4: Simplify right side
    120,449.52x = 11,092,864,813.22
  5. Step 5: Solve for x
    x = 11,092,864,813.22/120,449.52
  6. Step 6: Final answer
    x = 92,095.55

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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.