Home / 218,611.89-301,685.45-123,120.27

Finding the Fourth Proportional to 218,611.89, 301,685.45 and 123,120.27

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Solution

The fourth proportional to 218,611.89, 301,685.45 and 123,120.27 is: 169,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,611.89 : 301,685.45 = 123,120.27 : x
  2. Step 2: Convert to fraction form
    218,611.89/301,685.45 = 123,120.27/x
  3. Step 3: Cross multiply
    218,611.89x = 301,685.45 × 123,120.27
  4. Step 4: Simplify right side
    218,611.89x = 37,143,593,443.47
  5. Step 5: Solve for x
    x = 37,143,593,443.47/218,611.89
  6. Step 6: Final answer
    x = 169,906.56

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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.