Home / 120,439.87-166,208.20-66,725.62

Finding the Fourth Proportional to 120,439.87, 166,208.20 and 66,725.62

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Solution

The fourth proportional to 120,439.87, 166,208.20 and 66,725.62 is: 92,082.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,439.87 : 166,208.20 = 66,725.62 : x
  2. Step 2: Convert to fraction form
    120,439.87/166,208.20 = 66,725.62/x
  3. Step 3: Cross multiply
    120,439.87x = 166,208.20 × 66,725.62
  4. Step 4: Simplify right side
    120,439.87x = 11,090,344,611.75
  5. Step 5: Solve for x
    x = 11,090,344,611.75/120,439.87
  6. Step 6: Final answer
    x = 92,082.01

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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.