Home / 188,078.08-259,549.52-103,198.20

Finding the Fourth Proportional to 188,078.08, 259,549.52 and 103,198.20

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Solution

The fourth proportional to 188,078.08, 259,549.52 and 103,198.20 is: 142,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,078.08 : 259,549.52 = 103,198.20 : x
  2. Step 2: Convert to fraction form
    188,078.08/259,549.52 = 103,198.20/x
  3. Step 3: Cross multiply
    188,078.08x = 259,549.52 × 103,198.20
  4. Step 4: Simplify right side
    188,078.08x = 26,785,043,274.86
  5. Step 5: Solve for x
    x = 26,785,043,274.86/188,078.08
  6. Step 6: Final answer
    x = 142,414.49

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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.