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Finding the Fourth Proportional to 169,756.56, 254,690.12 and 80,998.58

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Solution

The fourth proportional to 169,756.56, 254,690.12 and 80,998.58 is: 121,524.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,756.56 : 254,690.12 = 80,998.58 : x
  2. Step 2: Convert to fraction form
    169,756.56/254,690.12 = 80,998.58/x
  3. Step 3: Cross multiply
    169,756.56x = 254,690.12 × 80,998.58
  4. Step 4: Simplify right side
    169,756.56x = 20,629,538,899.25
  5. Step 5: Solve for x
    x = 20,629,538,899.25/169,756.56
  6. Step 6: Final answer
    x = 121,524.25

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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.