Home / 115,066.28-172,640.82-40,197.44

Finding the Fourth Proportional to 115,066.28, 172,640.82 and 40,197.44

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Solution

The fourth proportional to 115,066.28, 172,640.82 and 40,197.44 is: 60,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,066.28 : 172,640.82 = 40,197.44 : x
  2. Step 2: Convert to fraction form
    115,066.28/172,640.82 = 40,197.44/x
  3. Step 3: Cross multiply
    115,066.28x = 172,640.82 × 40,197.44
  4. Step 4: Simplify right side
    115,066.28x = 6,939,719,003.50
  5. Step 5: Solve for x
    x = 6,939,719,003.50/115,066.28
  6. Step 6: Final answer
    x = 60,310.62

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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.