Home / 129,458.28-194,262.90-54,573.84

Finding the Fourth Proportional to 129,458.28, 194,262.90 and 54,573.84

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Solution

The fourth proportional to 129,458.28, 194,262.90 and 54,573.84 is: 81,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,458.28 : 194,262.90 = 54,573.84 : x
  2. Step 2: Convert to fraction form
    129,458.28/194,262.90 = 54,573.84/x
  3. Step 3: Cross multiply
    129,458.28x = 194,262.90 × 54,573.84
  4. Step 4: Simplify right side
    129,458.28x = 10,601,672,422.54
  5. Step 5: Solve for x
    x = 10,601,672,422.54/129,458.28
  6. Step 6: Final answer
    x = 81,892.58

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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.