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Finding the Fourth Proportional to 126,735.87, 174,895.25 and 69,375.21

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Solution

The fourth proportional to 126,735.87, 174,895.25 and 69,375.21 is: 95,737.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,735.87 : 174,895.25 = 69,375.21 : x
  2. Step 2: Convert to fraction form
    126,735.87/174,895.25 = 69,375.21/x
  3. Step 3: Cross multiply
    126,735.87x = 174,895.25 × 69,375.21
  4. Step 4: Simplify right side
    126,735.87x = 12,133,394,349.88
  5. Step 5: Solve for x
    x = 12,133,394,349.88/126,735.87
  6. Step 6: Final answer
    x = 95,737.65

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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.