Home / 142,861.05-214,321.56-54,112.59

Finding the Fourth Proportional to 142,861.05, 214,321.56 and 54,112.59

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Solution

The fourth proportional to 142,861.05, 214,321.56 and 54,112.59 is: 81,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,861.05 : 214,321.56 = 54,112.59 : x
  2. Step 2: Convert to fraction form
    142,861.05/214,321.56 = 54,112.59/x
  3. Step 3: Cross multiply
    142,861.05x = 214,321.56 × 54,112.59
  4. Step 4: Simplify right side
    142,861.05x = 11,597,494,704.44
  5. Step 5: Solve for x
    x = 11,597,494,704.44/142,861.05
  6. Step 6: Final answer
    x = 81,180.24

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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.