Home / 143,823.92-198,483.80-80,162.18

Finding the Fourth Proportional to 143,823.92, 198,483.80 and 80,162.18

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Solution

The fourth proportional to 143,823.92, 198,483.80 and 80,162.18 is: 110,627.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,823.92 : 198,483.80 = 80,162.18 : x
  2. Step 2: Convert to fraction form
    143,823.92/198,483.80 = 80,162.18/x
  3. Step 3: Cross multiply
    143,823.92x = 198,483.80 × 80,162.18
  4. Step 4: Simplify right side
    143,823.92x = 15,910,894,102.68
  5. Step 5: Solve for x
    x = 15,910,894,102.68/143,823.92
  6. Step 6: Final answer
    x = 110,627.59

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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.