Home / 143,605.29-214,938.36-105,644.43

Finding the Fourth Proportional to 143,605.29, 214,938.36 and 105,644.43

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Solution

The fourth proportional to 143,605.29, 214,938.36 and 105,644.43 is: 158,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,605.29 : 214,938.36 = 105,644.43 : x
  2. Step 2: Convert to fraction form
    143,605.29/214,938.36 = 105,644.43/x
  3. Step 3: Cross multiply
    143,605.29x = 214,938.36 × 105,644.43
  4. Step 4: Simplify right side
    143,605.29x = 22,707,040,527.33
  5. Step 5: Solve for x
    x = 22,707,040,527.33/143,605.29
  6. Step 6: Final answer
    x = 158,121.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.