Home / 140,650.90-194,090.73-76,976.38

Finding the Fourth Proportional to 140,650.90, 194,090.73 and 76,976.38

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Solution

The fourth proportional to 140,650.90, 194,090.73 and 76,976.38 is: 106,223.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,650.90 : 194,090.73 = 76,976.38 : x
  2. Step 2: Convert to fraction form
    140,650.90/194,090.73 = 76,976.38/x
  3. Step 3: Cross multiply
    140,650.90x = 194,090.73 × 76,976.38
  4. Step 4: Simplify right side
    140,650.90x = 14,940,401,786.96
  5. Step 5: Solve for x
    x = 14,940,401,786.96/140,650.90
  6. Step 6: Final answer
    x = 106,223.29

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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.