Home / 142,839.11-214,626.47-107,632.43

Finding the Fourth Proportional to 142,839.11, 214,626.47 and 107,632.43

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Solution

The fourth proportional to 142,839.11, 214,626.47 and 107,632.43 is: 161,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,839.11 : 214,626.47 = 107,632.43 : x
  2. Step 2: Convert to fraction form
    142,839.11/214,626.47 = 107,632.43/x
  3. Step 3: Cross multiply
    142,839.11x = 214,626.47 × 107,632.43
  4. Step 4: Simplify right side
    142,839.11x = 23,100,766,897.13
  5. Step 5: Solve for x
    x = 23,100,766,897.13/142,839.11
  6. Step 6: Final answer
    x = 161,725.79

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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.