Home / 129,573.12-194,276.40-54,672.78

Finding the Fourth Proportional to 129,573.12, 194,276.40 and 54,672.78

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Solution

The fourth proportional to 129,573.12, 194,276.40 and 54,672.78 is: 81,974.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,573.12 : 194,276.40 = 54,672.78 : x
  2. Step 2: Convert to fraction form
    129,573.12/194,276.40 = 54,672.78/x
  3. Step 3: Cross multiply
    129,573.12x = 194,276.40 × 54,672.78
  4. Step 4: Simplify right side
    129,573.12x = 10,621,630,876.39
  5. Step 5: Solve for x
    x = 10,621,630,876.39/129,573.12
  6. Step 6: Final answer
    x = 81,974.03

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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.