Home / 140,640.90-194,084.67-76,982.73

Finding the Fourth Proportional to 140,640.90, 194,084.67 and 76,982.73

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Solution

The fourth proportional to 140,640.90, 194,084.67 and 76,982.73 is: 106,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,640.90 : 194,084.67 = 76,982.73 : x
  2. Step 2: Convert to fraction form
    140,640.90/194,084.67 = 76,982.73/x
  3. Step 3: Cross multiply
    140,640.90x = 194,084.67 × 76,982.73
  4. Step 4: Simplify right side
    140,640.90x = 14,941,167,747.75
  5. Step 5: Solve for x
    x = 14,941,167,747.75/140,640.90
  6. Step 6: Final answer
    x = 106,236.29

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1.5x scale

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.