Home / 136,410.28-188,255.64-82,697.56

Finding the Fourth Proportional to 136,410.28, 188,255.64 and 82,697.56

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Solution

The fourth proportional to 136,410.28, 188,255.64 and 82,697.56 is: 114,128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,410.28 : 188,255.64 = 82,697.56 : x
  2. Step 2: Convert to fraction form
    136,410.28/188,255.64 = 82,697.56/x
  3. Step 3: Cross multiply
    136,410.28x = 188,255.64 × 82,697.56
  4. Step 4: Simplify right side
    136,410.28x = 15,568,281,923.72
  5. Step 5: Solve for x
    x = 15,568,281,923.72/136,410.28
  6. Step 6: Final answer
    x = 114,128.36

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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.