Home / 144,733.92-199,732.68-80,207.28

Finding the Fourth Proportional to 144,733.92, 199,732.68 and 80,207.28

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Solution

The fourth proportional to 144,733.92, 199,732.68 and 80,207.28 is: 110,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,733.92 : 199,732.68 = 80,207.28 : x
  2. Step 2: Convert to fraction form
    144,733.92/199,732.68 = 80,207.28/x
  3. Step 3: Cross multiply
    144,733.92x = 199,732.68 × 80,207.28
  4. Step 4: Simplify right side
    144,733.92x = 16,020,014,989.91
  5. Step 5: Solve for x
    x = 16,020,014,989.91/144,733.92
  6. Step 6: Final answer
    x = 110,685.97

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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.