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Finding the Fourth Proportional to 125,410.93, 188,249.42 and 111,078.28

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Solution

The fourth proportional to 125,410.93, 188,249.42 and 111,078.28 is: 166,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,410.93 : 188,249.42 = 111,078.28 : x
  2. Step 2: Convert to fraction form
    125,410.93/188,249.42 = 111,078.28/x
  3. Step 3: Cross multiply
    125,410.93x = 188,249.42 × 111,078.28
  4. Step 4: Simplify right side
    125,410.93x = 20,910,421,784.60
  5. Step 5: Solve for x
    x = 20,910,421,784.60/125,410.93
  6. Step 6: Final answer
    x = 166,735.24

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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.