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Finding the Fourth Proportional to 144,275.52, 199,086 and 80,611.92

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Solution

The fourth proportional to 144,275.52, 199,086 and 80,611.92 is: 111,236.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,275.52 : 199,086 = 80,611.92 : x
  2. Step 2: Convert to fraction form
    144,275.52/199,086 = 80,611.92/x
  3. Step 3: Cross multiply
    144,275.52x = 199,086 × 80,611.92
  4. Step 4: Simplify right side
    144,275.52x = 16,048,704,705.12
  5. Step 5: Solve for x
    x = 16,048,704,705.12/144,275.52
  6. Step 6: Final answer
    x = 111,236.51

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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.