Home / 120,426.09-166,187.97-66,714.59

Finding the Fourth Proportional to 120,426.09, 166,187.97 and 66,714.59

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Solution

The fourth proportional to 120,426.09, 166,187.97 and 66,714.59 is: 92,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,426.09 : 166,187.97 = 66,714.59 : x
  2. Step 2: Convert to fraction form
    120,426.09/166,187.97 = 66,714.59/x
  3. Step 3: Cross multiply
    120,426.09x = 166,187.97 × 66,714.59
  4. Step 4: Simplify right side
    120,426.09x = 11,087,161,450.54
  5. Step 5: Solve for x
    x = 11,087,161,450.54/120,426.09
  6. Step 6: Final answer
    x = 92,066.11

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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.