Home / 142,882.95-214,297.09-71,785.88

Finding the Fourth Proportional to 142,882.95, 214,297.09 and 71,785.88

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Solution

The fourth proportional to 142,882.95, 214,297.09 and 71,785.88 is: 107,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,882.95 : 214,297.09 = 71,785.88 : x
  2. Step 2: Convert to fraction form
    142,882.95/214,297.09 = 71,785.88/x
  3. Step 3: Cross multiply
    142,882.95x = 214,297.09 × 71,785.88
  4. Step 4: Simplify right side
    142,882.95x = 15,383,505,812.56
  5. Step 5: Solve for x
    x = 15,383,505,812.56/142,882.95
  6. Step 6: Final answer
    x = 107,665.09

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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.