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Finding the Fourth Proportional to 144,279.64, 199,102.17 and 80,617.96

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Solution

The fourth proportional to 144,279.64, 199,102.17 and 80,617.96 is: 111,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,279.64 : 199,102.17 = 80,617.96 : x
  2. Step 2: Convert to fraction form
    144,279.64/199,102.17 = 80,617.96/x
  3. Step 3: Cross multiply
    144,279.64x = 199,102.17 × 80,617.96
  4. Step 4: Simplify right side
    144,279.64x = 16,051,210,776.97
  5. Step 5: Solve for x
    x = 16,051,210,776.97/144,279.64
  6. Step 6: Final answer
    x = 111,250.70

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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.