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Finding the Fourth Proportional to 169,709.45, 254,619.48 and 80,951.42

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Solution

The fourth proportional to 169,709.45, 254,619.48 and 80,951.42 is: 121,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,709.45 : 254,619.48 = 80,951.42 : x
  2. Step 2: Convert to fraction form
    169,709.45/254,619.48 = 80,951.42/x
  3. Step 3: Cross multiply
    169,709.45x = 254,619.48 × 80,951.42
  4. Step 4: Simplify right side
    169,709.45x = 20,611,808,465.66
  5. Step 5: Solve for x
    x = 20,611,808,465.66/169,709.45
  6. Step 6: Final answer
    x = 121,453.51

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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.