Home / 129,601.60-194,402.40-54,806.20

Finding the Fourth Proportional to 129,601.60, 194,402.40 and 54,806.20

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Solution

The fourth proportional to 129,601.60, 194,402.40 and 54,806.20 is: 82,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,601.60 : 194,402.40 = 54,806.20 : x
  2. Step 2: Convert to fraction form
    129,601.60/194,402.40 = 54,806.20/x
  3. Step 3: Cross multiply
    129,601.60x = 194,402.40 × 54,806.20
  4. Step 4: Simplify right side
    129,601.60x = 10,654,456,814.88
  5. Step 5: Solve for x
    x = 10,654,456,814.88/129,601.60
  6. Step 6: Final answer
    x = 82,209.30

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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.