Home / 140,660.25-194,103.69-76,985.73

Finding the Fourth Proportional to 140,660.25, 194,103.69 and 76,985.73

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Solution

The fourth proportional to 140,660.25, 194,103.69 and 76,985.73 is: 106,236.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,660.25 : 194,103.69 = 76,985.73 : x
  2. Step 2: Convert to fraction form
    140,660.25/194,103.69 = 76,985.73/x
  3. Step 3: Cross multiply
    140,660.25x = 194,103.69 × 76,985.73
  4. Step 4: Simplify right side
    140,660.25x = 14,943,214,270.34
  5. Step 5: Solve for x
    x = 14,943,214,270.34/140,660.25
  6. Step 6: Final answer
    x = 106,236.23

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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.