Home / 120,820.43-166,732.37-67,104.06

Finding the Fourth Proportional to 120,820.43, 166,732.37 and 67,104.06

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Solution

The fourth proportional to 120,820.43, 166,732.37 and 67,104.06 is: 92,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,820.43 : 166,732.37 = 67,104.06 : x
  2. Step 2: Convert to fraction form
    120,820.43/166,732.37 = 67,104.06/x
  3. Step 3: Cross multiply
    120,820.43x = 166,732.37 × 67,104.06
  4. Step 4: Simplify right side
    120,820.43x = 11,188,418,624.90
  5. Step 5: Solve for x
    x = 11,188,418,624.90/120,820.43
  6. Step 6: Final answer
    x = 92,603.70

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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.