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Finding the Fourth Proportional to 105,093, 157,636.92 and 30,213.36

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Solution

The fourth proportional to 105,093, 157,636.92 and 30,213.36 is: 45,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,093 : 157,636.92 = 30,213.36 : x
  2. Step 2: Convert to fraction form
    105,093/157,636.92 = 30,213.36/x
  3. Step 3: Cross multiply
    105,093x = 157,636.92 × 30,213.36
  4. Step 4: Simplify right side
    105,093x = 4,762,741,013.25
  5. Step 5: Solve for x
    x = 4,762,741,013.25/105,093
  6. Step 6: Final answer
    x = 45,319.30

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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.