Home / 140,628.60-194,044.14-80,203.64

Finding the Fourth Proportional to 140,628.60, 194,044.14 and 80,203.64

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Solution

The fourth proportional to 140,628.60, 194,044.14 and 80,203.64 is: 110,667.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,628.60 : 194,044.14 = 80,203.64 : x
  2. Step 2: Convert to fraction form
    140,628.60/194,044.14 = 80,203.64/x
  3. Step 3: Cross multiply
    140,628.60x = 194,044.14 × 80,203.64
  4. Step 4: Simplify right side
    140,628.60x = 15,563,045,378.45
  5. Step 5: Solve for x
    x = 15,563,045,378.45/140,628.60
  6. Step 6: Final answer
    x = 110,667.71

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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.