Home / 143,824.76-198,484.98-80,163.04

Finding the Fourth Proportional to 143,824.76, 198,484.98 and 80,163.04

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Solution

The fourth proportional to 143,824.76, 198,484.98 and 80,163.04 is: 110,628.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,824.76 : 198,484.98 = 80,163.04 : x
  2. Step 2: Convert to fraction form
    143,824.76/198,484.98 = 80,163.04/x
  3. Step 3: Cross multiply
    143,824.76x = 198,484.98 × 80,163.04
  4. Step 4: Simplify right side
    143,824.76x = 15,911,159,391.14
  5. Step 5: Solve for x
    x = 15,911,159,391.14/143,824.76
  6. Step 6: Final answer
    x = 110,628.79

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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.