Home / 143,823.88-198,483.72-80,162.13

Finding the Fourth Proportional to 143,823.88, 198,483.72 and 80,162.13

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Solution

The fourth proportional to 143,823.88, 198,483.72 and 80,162.13 is: 110,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,823.88 : 198,483.72 = 80,162.13 : x
  2. Step 2: Convert to fraction form
    143,823.88/198,483.72 = 80,162.13/x
  3. Step 3: Cross multiply
    143,823.88x = 198,483.72 × 80,162.13
  4. Step 4: Simplify right side
    143,823.88x = 15,910,877,765.52
  5. Step 5: Solve for x
    x = 15,910,877,765.52/143,823.88
  6. Step 6: Final answer
    x = 110,627.51

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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.