Home / 120,734.78-166,605.66-67,015.56

Finding the Fourth Proportional to 120,734.78, 166,605.66 and 67,015.56

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Solution

The fourth proportional to 120,734.78, 166,605.66 and 67,015.56 is: 92,476.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,734.78 : 166,605.66 = 67,015.56 : x
  2. Step 2: Convert to fraction form
    120,734.78/166,605.66 = 67,015.56/x
  3. Step 3: Cross multiply
    120,734.78x = 166,605.66 × 67,015.56
  4. Step 4: Simplify right side
    120,734.78x = 11,165,172,228.84
  5. Step 5: Solve for x
    x = 11,165,172,228.84/120,734.78
  6. Step 6: Final answer
    x = 92,476.85

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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.