Home / 129,453.28-194,255.40-54,568.84

Finding the Fourth Proportional to 129,453.28, 194,255.40 and 54,568.84

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Solution

The fourth proportional to 129,453.28, 194,255.40 and 54,568.84 is: 81,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,453.28 : 194,255.40 = 54,568.84 : x
  2. Step 2: Convert to fraction form
    129,453.28/194,255.40 = 54,568.84/x
  3. Step 3: Cross multiply
    129,453.28x = 194,255.40 × 54,568.84
  4. Step 4: Simplify right side
    129,453.28x = 10,600,291,841.74
  5. Step 5: Solve for x
    x = 10,600,291,841.74/129,453.28
  6. Step 6: Final answer
    x = 81,885.08

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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.