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Finding the Fourth Proportional to 125,500.44, 173,189.37 and 68,138.49

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Solution

The fourth proportional to 125,500.44, 173,189.37 and 68,138.49 is: 94,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,500.44 : 173,189.37 = 68,138.49 : x
  2. Step 2: Convert to fraction form
    125,500.44/173,189.37 = 68,138.49/x
  3. Step 3: Cross multiply
    125,500.44x = 173,189.37 × 68,138.49
  4. Step 4: Simplify right side
    125,500.44x = 11,800,862,155.85
  5. Step 5: Solve for x
    x = 11,800,862,155.85/125,500.44
  6. Step 6: Final answer
    x = 94,030.44

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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.