Home / 129,601.10-194,401.65-54,805.70

Finding the Fourth Proportional to 129,601.10, 194,401.65 and 54,805.70

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Solution

The fourth proportional to 129,601.10, 194,401.65 and 54,805.70 is: 82,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,601.10 : 194,401.65 = 54,805.70 : x
  2. Step 2: Convert to fraction form
    129,601.10/194,401.65 = 54,805.70/x
  3. Step 3: Cross multiply
    129,601.10x = 194,401.65 × 54,805.70
  4. Step 4: Simplify right side
    129,601.10x = 10,654,318,509.41
  5. Step 5: Solve for x
    x = 10,654,318,509.41/129,601.10
  6. Step 6: Final answer
    x = 82,208.55

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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.