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Finding the Fourth Proportional to 144,989.63, 200,085.27 and 80,468.61

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Solution

The fourth proportional to 144,989.63, 200,085.27 and 80,468.61 is: 111,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,989.63 : 200,085.27 = 80,468.61 : x
  2. Step 2: Convert to fraction form
    144,989.63/200,085.27 = 80,468.61/x
  3. Step 3: Cross multiply
    144,989.63x = 200,085.27 × 80,468.61
  4. Step 4: Simplify right side
    144,989.63x = 16,100,583,558.37
  5. Step 5: Solve for x
    x = 16,100,583,558.37/144,989.63
  6. Step 6: Final answer
    x = 111,046.45

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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.