Home / 129,408.62-194,110.98-40,667.44

Finding the Fourth Proportional to 129,408.62, 194,110.98 and 40,667.44

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Solution

The fourth proportional to 129,408.62, 194,110.98 and 40,667.44 is: 61,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,408.62 : 194,110.98 = 40,667.44 : x
  2. Step 2: Convert to fraction form
    129,408.62/194,110.98 = 40,667.44/x
  3. Step 3: Cross multiply
    129,408.62x = 194,110.98 × 40,667.44
  4. Step 4: Simplify right side
    129,408.62x = 7,893,996,632.49
  5. Step 5: Solve for x
    x = 7,893,996,632.49/129,408.62
  6. Step 6: Final answer
    x = 61,000.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.