Home / 128,386.26-192,540.51-34,879.86

Finding the Fourth Proportional to 128,386.26, 192,540.51 and 34,879.86

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Solution

The fourth proportional to 128,386.26, 192,540.51 and 34,879.86 is: 52,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,386.26 : 192,540.51 = 34,879.86 : x
  2. Step 2: Convert to fraction form
    128,386.26/192,540.51 = 34,879.86/x
  3. Step 3: Cross multiply
    128,386.26x = 192,540.51 × 34,879.86
  4. Step 4: Simplify right side
    128,386.26x = 6,715,786,033.13
  5. Step 5: Solve for x
    x = 6,715,786,033.13/128,386.26
  6. Step 6: Final answer
    x = 52,309.23

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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.