Home / 143,767.82-198,270.09-90,057.53

Finding the Fourth Proportional to 143,767.82, 198,270.09 and 90,057.53

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Solution

The fourth proportional to 143,767.82, 198,270.09 and 90,057.53 is: 124,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,767.82 : 198,270.09 = 90,057.53 : x
  2. Step 2: Convert to fraction form
    143,767.82/198,270.09 = 90,057.53/x
  3. Step 3: Cross multiply
    143,767.82x = 198,270.09 × 90,057.53
  4. Step 4: Simplify right side
    143,767.82x = 17,855,713,586.93
  5. Step 5: Solve for x
    x = 17,855,713,586.93/143,767.82
  6. Step 6: Final answer
    x = 124,198.27

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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.