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Finding the Fourth Proportional to 120,829.62, 166,744.92 and 67,119.63

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Solution

The fourth proportional to 120,829.62, 166,744.92 and 67,119.63 is: 92,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,829.62 : 166,744.92 = 67,119.63 : x
  2. Step 2: Convert to fraction form
    120,829.62/166,744.92 = 67,119.63/x
  3. Step 3: Cross multiply
    120,829.62x = 166,744.92 × 67,119.63
  4. Step 4: Simplify right side
    120,829.62x = 11,191,857,334.78
  5. Step 5: Solve for x
    x = 11,191,857,334.78/120,829.62
  6. Step 6: Final answer
    x = 92,625.11

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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.