Home / 143,823.67-198,483.45-80,161.92

Finding the Fourth Proportional to 143,823.67, 198,483.45 and 80,161.92

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Solution

The fourth proportional to 143,823.67, 198,483.45 and 80,161.92 is: 110,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,823.67 : 198,483.45 = 80,161.92 : x
  2. Step 2: Convert to fraction form
    143,823.67/198,483.45 = 80,161.92/x
  3. Step 3: Cross multiply
    143,823.67x = 198,483.45 × 80,161.92
  4. Step 4: Simplify right side
    143,823.67x = 15,910,814,440.22
  5. Step 5: Solve for x
    x = 15,910,814,440.22/143,823.67
  6. Step 6: Final answer
    x = 110,627.23

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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.