Home / 115,131.24-172,580.22-55,917

Finding the Fourth Proportional to 115,131.24, 172,580.22 and 55,917

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Solution

The fourth proportional to 115,131.24, 172,580.22 and 55,917 is: 83,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,131.24 : 172,580.22 = 55,917 : x
  2. Step 2: Convert to fraction form
    115,131.24/172,580.22 = 55,917/x
  3. Step 3: Cross multiply
    115,131.24x = 172,580.22 × 55,917
  4. Step 4: Simplify right side
    115,131.24x = 9,650,168,161.74
  5. Step 5: Solve for x
    x = 9,650,168,161.74/115,131.24
  6. Step 6: Final answer
    x = 83,818.85

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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.