Home / 115,134.66-172,686.87-36,249.30

Finding the Fourth Proportional to 115,134.66, 172,686.87 and 36,249.30

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Solution

The fourth proportional to 115,134.66, 172,686.87 and 36,249.30 is: 54,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,134.66 : 172,686.87 = 36,249.30 : x
  2. Step 2: Convert to fraction form
    115,134.66/172,686.87 = 36,249.30/x
  3. Step 3: Cross multiply
    115,134.66x = 172,686.87 × 36,249.30
  4. Step 4: Simplify right side
    115,134.66x = 6,259,778,156.69
  5. Step 5: Solve for x
    x = 6,259,778,156.69/115,134.66
  6. Step 6: Final answer
    x = 54,369.19

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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.