Home / 188,512.10-260,140.09-103,628.56

Finding the Fourth Proportional to 188,512.10, 260,140.09 and 103,628.56

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Solution

The fourth proportional to 188,512.10, 260,140.09 and 103,628.56 is: 143,003.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,512.10 : 260,140.09 = 103,628.56 : x
  2. Step 2: Convert to fraction form
    188,512.10/260,140.09 = 103,628.56/x
  3. Step 3: Cross multiply
    188,512.10x = 260,140.09 × 103,628.56
  4. Step 4: Simplify right side
    188,512.10x = 26,957,942,924.97
  5. Step 5: Solve for x
    x = 26,957,942,924.97/188,512.10
  6. Step 6: Final answer
    x = 143,003.78

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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.