Home / 140,660.82-194,114.07-77,004.54

Finding the Fourth Proportional to 140,660.82, 194,114.07 and 77,004.54

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Solution

The fourth proportional to 140,660.82, 194,114.07 and 77,004.54 is: 106,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,660.82 : 194,114.07 = 77,004.54 : x
  2. Step 2: Convert to fraction form
    140,660.82/194,114.07 = 77,004.54/x
  3. Step 3: Cross multiply
    140,660.82x = 194,114.07 × 77,004.54
  4. Step 4: Simplify right side
    140,660.82x = 14,947,664,667.88
  5. Step 5: Solve for x
    x = 14,947,664,667.88/140,660.82
  6. Step 6: Final answer
    x = 106,267.44

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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.