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Finding the Fourth Proportional to 140,438.84, 193,783.20 and 80,010.68

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Solution

The fourth proportional to 140,438.84, 193,783.20 and 80,010.68 is: 110,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,438.84 : 193,783.20 = 80,010.68 : x
  2. Step 2: Convert to fraction form
    140,438.84/193,783.20 = 80,010.68/x
  3. Step 3: Cross multiply
    140,438.84x = 193,783.20 × 80,010.68
  4. Step 4: Simplify right side
    140,438.84x = 15,504,725,604.58
  5. Step 5: Solve for x
    x = 15,504,725,604.58/140,438.84
  6. Step 6: Final answer
    x = 110,401.98

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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.