Home / 115,183.70-172,764.21-40,290.02

Finding the Fourth Proportional to 115,183.70, 172,764.21 and 40,290.02

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Solution

The fourth proportional to 115,183.70, 172,764.21 and 40,290.02 is: 60,431.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,183.70 : 172,764.21 = 40,290.02 : x
  2. Step 2: Convert to fraction form
    115,183.70/172,764.21 = 40,290.02/x
  3. Step 3: Cross multiply
    115,183.70x = 172,764.21 × 40,290.02
  4. Step 4: Simplify right side
    115,183.70x = 6,960,673,476.18
  5. Step 5: Solve for x
    x = 6,960,673,476.18/115,183.70
  6. Step 6: Final answer
    x = 60,431.06

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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.