Home / 143,834.14-198,491.33-80,170.57

Finding the Fourth Proportional to 143,834.14, 198,491.33 and 80,170.57

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Solution

The fourth proportional to 143,834.14, 198,491.33 and 80,170.57 is: 110,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,834.14 : 198,491.33 = 80,170.57 : x
  2. Step 2: Convert to fraction form
    143,834.14/198,491.33 = 80,170.57/x
  3. Step 3: Cross multiply
    143,834.14x = 198,491.33 × 80,170.57
  4. Step 4: Simplify right side
    143,834.14x = 15,913,163,066.16
  5. Step 5: Solve for x
    x = 15,913,163,066.16/143,834.14
  6. Step 6: Final answer
    x = 110,635.51

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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.