Home / 115,743.26-159,733.11-64,761.86

Finding the Fourth Proportional to 115,743.26, 159,733.11 and 64,761.86

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Solution

The fourth proportional to 115,743.26, 159,733.11 and 64,761.86 is: 89,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,743.26 : 159,733.11 = 64,761.86 : x
  2. Step 2: Convert to fraction form
    115,743.26/159,733.11 = 64,761.86/x
  3. Step 3: Cross multiply
    115,743.26x = 159,733.11 × 64,761.86
  4. Step 4: Simplify right side
    115,743.26x = 10,344,613,949.37
  5. Step 5: Solve for x
    x = 10,344,613,949.37/115,743.26
  6. Step 6: Final answer
    x = 89,375.52

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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.