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Finding the Fourth Proportional to 125,381.90, 188,085 and 36,633.44

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Solution

The fourth proportional to 125,381.90, 188,085 and 36,633.44 is: 54,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,381.90 : 188,085 = 36,633.44 : x
  2. Step 2: Convert to fraction form
    125,381.90/188,085 = 36,633.44/x
  3. Step 3: Cross multiply
    125,381.90x = 188,085 × 36,633.44
  4. Step 4: Simplify right side
    125,381.90x = 6,890,200,562.40
  5. Step 5: Solve for x
    x = 6,890,200,562.40/125,381.90
  6. Step 6: Final answer
    x = 54,953.71

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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.