Home / 143,799.22-198,448.68-80,136.46

Finding the Fourth Proportional to 143,799.22, 198,448.68 and 80,136.46

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Solution

The fourth proportional to 143,799.22, 198,448.68 and 80,136.46 is: 110,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,799.22 : 198,448.68 = 80,136.46 : x
  2. Step 2: Convert to fraction form
    143,799.22/198,448.68 = 80,136.46/x
  3. Step 3: Cross multiply
    143,799.22x = 198,448.68 × 80,136.46
  4. Step 4: Simplify right side
    143,799.22x = 15,902,974,706.87
  5. Step 5: Solve for x
    x = 15,902,974,706.87/143,799.22
  6. Step 6: Final answer
    x = 110,591.52

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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.