Home / 129,040.40-193,481.96-57,949.22

Finding the Fourth Proportional to 129,040.40, 193,481.96 and 57,949.22

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Solution

The fourth proportional to 129,040.40, 193,481.96 and 57,949.22 is: 86,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,040.40 : 193,481.96 = 57,949.22 : x
  2. Step 2: Convert to fraction form
    129,040.40/193,481.96 = 57,949.22/x
  3. Step 3: Cross multiply
    129,040.40x = 193,481.96 × 57,949.22
  4. Step 4: Simplify right side
    129,040.40x = 11,212,127,408.92
  5. Step 5: Solve for x
    x = 11,212,127,408.92/129,040.40
  6. Step 6: Final answer
    x = 86,888.51

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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.