Home / 124,757.82-172,347.93-107,961.66

Finding the Fourth Proportional to 124,757.82, 172,347.93 and 107,961.66

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Solution

The fourth proportional to 124,757.82, 172,347.93 and 107,961.66 is: 149,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,757.82 : 172,347.93 = 107,961.66 : x
  2. Step 2: Convert to fraction form
    124,757.82/172,347.93 = 107,961.66/x
  3. Step 3: Cross multiply
    124,757.82x = 172,347.93 × 107,961.66
  4. Step 4: Simplify right side
    124,757.82x = 18,606,968,620.36
  5. Step 5: Solve for x
    x = 18,606,968,620.36/124,757.82
  6. Step 6: Final answer
    x = 149,144.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.