Home / 120,601.90-166,406.16-66,874.60

Finding the Fourth Proportional to 120,601.90, 166,406.16 and 66,874.60

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Solution

The fourth proportional to 120,601.90, 166,406.16 and 66,874.60 is: 92,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,601.90 : 166,406.16 = 66,874.60 : x
  2. Step 2: Convert to fraction form
    120,601.90/166,406.16 = 66,874.60/x
  3. Step 3: Cross multiply
    120,601.90x = 166,406.16 × 66,874.60
  4. Step 4: Simplify right side
    120,601.90x = 11,128,345,387.54
  5. Step 5: Solve for x
    x = 11,128,345,387.54/120,601.90
  6. Step 6: Final answer
    x = 92,273.38

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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.