Home / 136,229.22-188,004.78-75,813.36

Finding the Fourth Proportional to 136,229.22, 188,004.78 and 75,813.36

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Solution

The fourth proportional to 136,229.22, 188,004.78 and 75,813.36 is: 104,627.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,229.22 : 188,004.78 = 75,813.36 : x
  2. Step 2: Convert to fraction form
    136,229.22/188,004.78 = 75,813.36/x
  3. Step 3: Cross multiply
    136,229.22x = 188,004.78 × 75,813.36
  4. Step 4: Simplify right side
    136,229.22x = 14,253,274,067.86
  5. Step 5: Solve for x
    x = 14,253,274,067.86/136,229.22
  6. Step 6: Final answer
    x = 104,627.14

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1.5x scale

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.