Home / 107,486.39-161,229.35-28,600.61

Finding the Fourth Proportional to 107,486.39, 161,229.35 and 28,600.61

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Solution

The fourth proportional to 107,486.39, 161,229.35 and 28,600.61 is: 42,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,486.39 : 161,229.35 = 28,600.61 : x
  2. Step 2: Convert to fraction form
    107,486.39/161,229.35 = 28,600.61/x
  3. Step 3: Cross multiply
    107,486.39x = 161,229.35 × 28,600.61
  4. Step 4: Simplify right side
    107,486.39x = 4,611,258,234.48
  5. Step 5: Solve for x
    x = 4,611,258,234.48/107,486.39
  6. Step 6: Final answer
    x = 42,900.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.