Home / 143,996.95-198,715.26-80,336.62

Finding the Fourth Proportional to 143,996.95, 198,715.26 and 80,336.62

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Solution

The fourth proportional to 143,996.95, 198,715.26 and 80,336.62 is: 110,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,996.95 : 198,715.26 = 80,336.62 : x
  2. Step 2: Convert to fraction form
    143,996.95/198,715.26 = 80,336.62/x
  3. Step 3: Cross multiply
    143,996.95x = 198,715.26 × 80,336.62
  4. Step 4: Simplify right side
    143,996.95x = 15,964,112,330.82
  5. Step 5: Solve for x
    x = 15,964,112,330.82/143,996.95
  6. Step 6: Final answer
    x = 110,864.24

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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.