Home / 115,015.10-172,528.05-36,131.90

Finding the Fourth Proportional to 115,015.10, 172,528.05 and 36,131.90

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Solution

The fourth proportional to 115,015.10, 172,528.05 and 36,131.90 is: 54,199.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,015.10 : 172,528.05 = 36,131.90 : x
  2. Step 2: Convert to fraction form
    115,015.10/172,528.05 = 36,131.90/x
  3. Step 3: Cross multiply
    115,015.10x = 172,528.05 × 36,131.90
  4. Step 4: Simplify right side
    115,015.10x = 6,233,766,249.80
  5. Step 5: Solve for x
    x = 6,233,766,249.80/115,015.10
  6. Step 6: Final answer
    x = 54,199.55

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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.