Home / 199,781.24-299,670.78-81,452.12

Finding the Fourth Proportional to 199,781.24, 299,670.78 and 81,452.12

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Solution

The fourth proportional to 199,781.24, 299,670.78 and 81,452.12 is: 122,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,781.24 : 299,670.78 = 81,452.12 : x
  2. Step 2: Convert to fraction form
    199,781.24/299,670.78 = 81,452.12/x
  3. Step 3: Cross multiply
    199,781.24x = 299,670.78 × 81,452.12
  4. Step 4: Simplify right side
    199,781.24x = 24,408,820,333.05
  5. Step 5: Solve for x
    x = 24,408,820,333.05/199,781.24
  6. Step 6: Final answer
    x = 122,177.74

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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.