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Finding the Fourth Proportional to 105,137.80, 157,604.64 and 41,939.56

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Solution

The fourth proportional to 105,137.80, 157,604.64 and 41,939.56 is: 62,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,137.80 : 157,604.64 = 41,939.56 : x
  2. Step 2: Convert to fraction form
    105,137.80/157,604.64 = 41,939.56/x
  3. Step 3: Cross multiply
    105,137.80x = 157,604.64 × 41,939.56
  4. Step 4: Simplify right side
    105,137.80x = 6,609,869,255.56
  5. Step 5: Solve for x
    x = 6,609,869,255.56/105,137.80
  6. Step 6: Final answer
    x = 62,868.63

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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.