Home / 143,834.03-198,497.67-80,172.28

Finding the Fourth Proportional to 143,834.03, 198,497.67 and 80,172.28

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Solution

The fourth proportional to 143,834.03, 198,497.67 and 80,172.28 is: 110,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,834.03 : 198,497.67 = 80,172.28 : x
  2. Step 2: Convert to fraction form
    143,834.03/198,497.67 = 80,172.28/x
  3. Step 3: Cross multiply
    143,834.03x = 198,497.67 × 80,172.28
  4. Step 4: Simplify right side
    143,834.03x = 15,914,009,786.10
  5. Step 5: Solve for x
    x = 15,914,009,786.10/143,834.03
  6. Step 6: Final answer
    x = 110,641.48

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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.