Home / 115,771.56-159,773.33-64,789.39

Finding the Fourth Proportional to 115,771.56, 159,773.33 and 64,789.39

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Solution

The fourth proportional to 115,771.56, 159,773.33 and 64,789.39 is: 89,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,771.56 : 159,773.33 = 64,789.39 : x
  2. Step 2: Convert to fraction form
    115,771.56/159,773.33 = 64,789.39/x
  3. Step 3: Cross multiply
    115,771.56x = 159,773.33 × 64,789.39
  4. Step 4: Simplify right side
    115,771.56x = 10,351,616,588.97
  5. Step 5: Solve for x
    x = 10,351,616,588.97/115,771.56
  6. Step 6: Final answer
    x = 89,414.16

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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.