Home / 149,611.36-206,490.39-89,185.86

Finding the Fourth Proportional to 149,611.36, 206,490.39 and 89,185.86

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Solution

The fourth proportional to 149,611.36, 206,490.39 and 89,185.86 is: 123,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,611.36 : 206,490.39 = 89,185.86 : x
  2. Step 2: Convert to fraction form
    149,611.36/206,490.39 = 89,185.86/x
  3. Step 3: Cross multiply
    149,611.36x = 206,490.39 × 89,185.86
  4. Step 4: Simplify right side
    149,611.36x = 18,416,023,013.89
  5. Step 5: Solve for x
    x = 18,416,023,013.89/149,611.36
  6. Step 6: Final answer
    x = 123,092.41

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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.