Home / 115,609.22-159,540.67-67,862.57

Finding the Fourth Proportional to 115,609.22, 159,540.67 and 67,862.57

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Solution

The fourth proportional to 115,609.22, 159,540.67 and 67,862.57 is: 93,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,609.22 : 159,540.67 = 67,862.57 : x
  2. Step 2: Convert to fraction form
    115,609.22/159,540.67 = 67,862.57/x
  3. Step 3: Cross multiply
    115,609.22x = 159,540.67 × 67,862.57
  4. Step 4: Simplify right side
    115,609.22x = 10,826,838,918.36
  5. Step 5: Solve for x
    x = 10,826,838,918.36/115,609.22
  6. Step 6: Final answer
    x = 93,650.30

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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.