Home / 204,170.90-306,150.89-91,755.05

Finding the Fourth Proportional to 204,170.90, 306,150.89 and 91,755.05

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Solution

The fourth proportional to 204,170.90, 306,150.89 and 91,755.05 is: 137,585.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,170.90 : 306,150.89 = 91,755.05 : x
  2. Step 2: Convert to fraction form
    204,170.90/306,150.89 = 91,755.05/x
  3. Step 3: Cross multiply
    204,170.90x = 306,150.89 × 91,755.05
  4. Step 4: Simplify right side
    204,170.90x = 28,090,888,229.96
  5. Step 5: Solve for x
    x = 28,090,888,229.96/204,170.90
  6. Step 6: Final answer
    x = 137,585.17

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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.