Home / 143,825.66-198,486.22-80,163.92

Finding the Fourth Proportional to 143,825.66, 198,486.22 and 80,163.92

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Solution

The fourth proportional to 143,825.66, 198,486.22 and 80,163.92 is: 110,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,825.66 : 198,486.22 = 80,163.92 : x
  2. Step 2: Convert to fraction form
    143,825.66/198,486.22 = 80,163.92/x
  3. Step 3: Cross multiply
    143,825.66x = 198,486.22 × 80,163.92
  4. Step 4: Simplify right side
    143,825.66x = 15,911,433,461.18
  5. Step 5: Solve for x
    x = 15,911,433,461.18/143,825.66
  6. Step 6: Final answer
    x = 110,630.00

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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.