Home / 140,971.96-194,537.10-80,542.36

Finding the Fourth Proportional to 140,971.96, 194,537.10 and 80,542.36

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Solution

The fourth proportional to 140,971.96, 194,537.10 and 80,542.36 is: 111,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,971.96 : 194,537.10 = 80,542.36 : x
  2. Step 2: Convert to fraction form
    140,971.96/194,537.10 = 80,542.36/x
  3. Step 3: Cross multiply
    140,971.96x = 194,537.10 × 80,542.36
  4. Step 4: Simplify right side
    140,971.96x = 15,668,477,141.56
  5. Step 5: Solve for x
    x = 15,668,477,141.56/140,971.96
  6. Step 6: Final answer
    x = 111,146.05

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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.