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Finding the Fourth Proportional to 125,506.89, 173,202.57 and 68,918.27

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Solution

The fourth proportional to 125,506.89, 173,202.57 and 68,918.27 is: 95,108.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,506.89 : 173,202.57 = 68,918.27 : x
  2. Step 2: Convert to fraction form
    125,506.89/173,202.57 = 68,918.27/x
  3. Step 3: Cross multiply
    125,506.89x = 173,202.57 × 68,918.27
  4. Step 4: Simplify right side
    125,506.89x = 11,936,820,617.94
  5. Step 5: Solve for x
    x = 11,936,820,617.94/125,506.89
  6. Step 6: Final answer
    x = 95,108.89

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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.