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Finding the Fourth Proportional to 120,992.46, 166,982.88 and 69,314.46

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Solution

The fourth proportional to 120,992.46, 166,982.88 and 69,314.46 is: 95,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,992.46 : 166,982.88 = 69,314.46 : x
  2. Step 2: Convert to fraction form
    120,992.46/166,982.88 = 69,314.46/x
  3. Step 3: Cross multiply
    120,992.46x = 166,982.88 × 69,314.46
  4. Step 4: Simplify right side
    120,992.46x = 11,574,328,156.44
  5. Step 5: Solve for x
    x = 11,574,328,156.44/120,992.46
  6. Step 6: Final answer
    x = 95,661.57

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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.