Home / 115,408.66-173,132.13-40,509.38

Finding the Fourth Proportional to 115,408.66, 173,132.13 and 40,509.38

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Solution

The fourth proportional to 115,408.66, 173,132.13 and 40,509.38 is: 60,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,408.66 : 173,132.13 = 40,509.38 : x
  2. Step 2: Convert to fraction form
    115,408.66/173,132.13 = 40,509.38/x
  3. Step 3: Cross multiply
    115,408.66x = 173,132.13 × 40,509.38
  4. Step 4: Simplify right side
    115,408.66x = 7,013,474,627.39
  5. Step 5: Solve for x
    x = 7,013,474,627.39/115,408.66
  6. Step 6: Final answer
    x = 60,770.78

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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.