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Finding the Fourth Proportional to 144,181.52, 198,941.64 and 80,509.52

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Solution

The fourth proportional to 144,181.52, 198,941.64 and 80,509.52 is: 111,087.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,181.52 : 198,941.64 = 80,509.52 : x
  2. Step 2: Convert to fraction form
    144,181.52/198,941.64 = 80,509.52/x
  3. Step 3: Cross multiply
    144,181.52x = 198,941.64 × 80,509.52
  4. Step 4: Simplify right side
    144,181.52x = 16,016,695,944.41
  5. Step 5: Solve for x
    x = 16,016,695,944.41/144,181.52
  6. Step 6: Final answer
    x = 111,087.02

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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.