Home / 115,769.56-173,654.17-76,039.36

Finding the Fourth Proportional to 115,769.56, 173,654.17 and 76,039.36

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Solution

The fourth proportional to 115,769.56, 173,654.17 and 76,039.36 is: 114,058.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,769.56 : 173,654.17 = 76,039.36 : x
  2. Step 2: Convert to fraction form
    115,769.56/173,654.17 = 76,039.36/x
  3. Step 3: Cross multiply
    115,769.56x = 173,654.17 × 76,039.36
  4. Step 4: Simplify right side
    115,769.56x = 13,204,551,948.13
  5. Step 5: Solve for x
    x = 13,204,551,948.13/115,769.56
  6. Step 6: Final answer
    x = 114,058.93

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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.