Home / 126,342.72-189,524.16-73,757.52

Finding the Fourth Proportional to 126,342.72, 189,524.16 and 73,757.52

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Solution

The fourth proportional to 126,342.72, 189,524.16 and 73,757.52 is: 110,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,342.72 : 189,524.16 = 73,757.52 : x
  2. Step 2: Convert to fraction form
    126,342.72/189,524.16 = 73,757.52/x
  3. Step 3: Cross multiply
    126,342.72x = 189,524.16 × 73,757.52
  4. Step 4: Simplify right side
    126,342.72x = 13,978,832,021.68
  5. Step 5: Solve for x
    x = 13,978,832,021.68/126,342.72
  6. Step 6: Final answer
    x = 110,642.16

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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.