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Finding the Fourth Proportional to 199,748.68, 275,763.90 and 136,179.88

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Solution

The fourth proportional to 199,748.68, 275,763.90 and 136,179.88 is: 188,003.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,748.68 : 275,763.90 = 136,179.88 : x
  2. Step 2: Convert to fraction form
    199,748.68/275,763.90 = 136,179.88/x
  3. Step 3: Cross multiply
    199,748.68x = 275,763.90 × 136,179.88
  4. Step 4: Simplify right side
    199,748.68x = 37,553,494,810.33
  5. Step 5: Solve for x
    x = 37,553,494,810.33/199,748.68
  6. Step 6: Final answer
    x = 188,003.72

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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.