Home / 149,611.11-206,475.66-85,100.55

Finding the Fourth Proportional to 149,611.11, 206,475.66 and 85,100.55

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Solution

The fourth proportional to 149,611.11, 206,475.66 and 85,100.55 is: 117,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,611.11 : 206,475.66 = 85,100.55 : x
  2. Step 2: Convert to fraction form
    149,611.11/206,475.66 = 85,100.55/x
  3. Step 3: Cross multiply
    149,611.11x = 206,475.66 × 85,100.55
  4. Step 4: Simplify right side
    149,611.11x = 17,571,192,227.61
  5. Step 5: Solve for x
    x = 17,571,192,227.61/149,611.11
  6. Step 6: Final answer
    x = 117,445.77

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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.