Home / 125,917.52-188,876.34-120,450.92

Finding the Fourth Proportional to 125,917.52, 188,876.34 and 120,450.92

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Solution

The fourth proportional to 125,917.52, 188,876.34 and 120,450.92 is: 180,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,917.52 : 188,876.34 = 120,450.92 : x
  2. Step 2: Convert to fraction form
    125,917.52/188,876.34 = 120,450.92/x
  3. Step 3: Cross multiply
    125,917.52x = 188,876.34 × 120,450.92
  4. Step 4: Simplify right side
    125,917.52x = 22,750,328,919.23
  5. Step 5: Solve for x
    x = 22,750,328,919.23/125,917.52
  6. Step 6: Final answer
    x = 180,676.44

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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.