Home / 143,673.43-198,255.14-80,017.15

Finding the Fourth Proportional to 143,673.43, 198,255.14 and 80,017.15

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Solution

The fourth proportional to 143,673.43, 198,255.14 and 80,017.15 is: 110,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,673.43 : 198,255.14 = 80,017.15 : x
  2. Step 2: Convert to fraction form
    143,673.43/198,255.14 = 80,017.15/x
  3. Step 3: Cross multiply
    143,673.43x = 198,255.14 × 80,017.15
  4. Step 4: Simplify right side
    143,673.43x = 15,863,810,679.99
  5. Step 5: Solve for x
    x = 15,863,810,679.99/143,673.43
  6. Step 6: Final answer
    x = 110,415.76

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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.