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Finding the Fourth Proportional to 101,951.56, 140,825.46 and 77,604.58

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Solution

The fourth proportional to 101,951.56, 140,825.46 and 77,604.58 is: 107,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,951.56 : 140,825.46 = 77,604.58 : x
  2. Step 2: Convert to fraction form
    101,951.56/140,825.46 = 77,604.58/x
  3. Step 3: Cross multiply
    101,951.56x = 140,825.46 × 77,604.58
  4. Step 4: Simplify right side
    101,951.56x = 10,928,700,676.61
  5. Step 5: Solve for x
    x = 10,928,700,676.61/101,951.56
  6. Step 6: Final answer
    x = 107,195.03

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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.