Home / 120,469.19-166,254.17-66,753.09

Finding the Fourth Proportional to 120,469.19, 166,254.17 and 66,753.09

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Solution

The fourth proportional to 120,469.19, 166,254.17 and 66,753.09 is: 92,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,469.19 : 166,254.17 = 66,753.09 : x
  2. Step 2: Convert to fraction form
    120,469.19/166,254.17 = 66,753.09/x
  3. Step 3: Cross multiply
    120,469.19x = 166,254.17 × 66,753.09
  4. Step 4: Simplify right side
    120,469.19x = 11,097,979,239.12
  5. Step 5: Solve for x
    x = 11,097,979,239.12/120,469.19
  6. Step 6: Final answer
    x = 92,122.97

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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.