Home / 149,183.27-205,877.25-81,204.62

Finding the Fourth Proportional to 149,183.27, 205,877.25 and 81,204.62

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Solution

The fourth proportional to 149,183.27, 205,877.25 and 81,204.62 is: 112,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,183.27 : 205,877.25 = 81,204.62 : x
  2. Step 2: Convert to fraction form
    149,183.27/205,877.25 = 81,204.62/x
  3. Step 3: Cross multiply
    149,183.27x = 205,877.25 × 81,204.62
  4. Step 4: Simplify right side
    149,183.27x = 16,718,184,367.59
  5. Step 5: Solve for x
    x = 16,718,184,367.59/149,183.27
  6. Step 6: Final answer
    x = 112,064.74

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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.