Home / 194,568.68-291,715.20-86,438.66

Finding the Fourth Proportional to 194,568.68, 291,715.20 and 86,438.66

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Solution

The fourth proportional to 194,568.68, 291,715.20 and 86,438.66 is: 129,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,568.68 : 291,715.20 = 86,438.66 : x
  2. Step 2: Convert to fraction form
    194,568.68/291,715.20 = 86,438.66/x
  3. Step 3: Cross multiply
    194,568.68x = 291,715.20 × 86,438.66
  4. Step 4: Simplify right side
    194,568.68x = 25,215,469,828.15
  5. Step 5: Solve for x
    x = 25,215,469,828.15/194,568.68
  6. Step 6: Final answer
    x = 129,596.76

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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.