Home / 194,447.20-291,441.52-87,706.21

Finding the Fourth Proportional to 194,447.20, 291,441.52 and 87,706.21

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Solution

The fourth proportional to 194,447.20, 291,441.52 and 87,706.21 is: 131,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,447.20 : 291,441.52 = 87,706.21 : x
  2. Step 2: Convert to fraction form
    194,447.20/291,441.52 = 87,706.21/x
  3. Step 3: Cross multiply
    194,447.20x = 291,441.52 × 87,706.21
  4. Step 4: Simplify right side
    194,447.20x = 25,561,231,155.84
  5. Step 5: Solve for x
    x = 25,561,231,155.84/194,447.20
  6. Step 6: Final answer
    x = 131,455.90

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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.