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Finding the Fourth Proportional to 120,727.87, 166,612.03 and 67,013.79

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Solution

The fourth proportional to 120,727.87, 166,612.03 and 67,013.79 is: 92,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,727.87 : 166,612.03 = 67,013.79 : x
  2. Step 2: Convert to fraction form
    120,727.87/166,612.03 = 67,013.79/x
  3. Step 3: Cross multiply
    120,727.87x = 166,612.03 × 67,013.79
  4. Step 4: Simplify right side
    120,727.87x = 11,165,302,797.56
  5. Step 5: Solve for x
    x = 11,165,302,797.56/120,727.87
  6. Step 6: Final answer
    x = 92,483.23

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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.