Home / 194,487.21-291,845.61-82,160.15

Finding the Fourth Proportional to 194,487.21, 291,845.61 and 82,160.15

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Solution

The fourth proportional to 194,487.21, 291,845.61 and 82,160.15 is: 123,288.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,487.21 : 291,845.61 = 82,160.15 : x
  2. Step 2: Convert to fraction form
    194,487.21/291,845.61 = 82,160.15/x
  3. Step 3: Cross multiply
    194,487.21x = 291,845.61 × 82,160.15
  4. Step 4: Simplify right side
    194,487.21x = 23,978,077,635.21
  5. Step 5: Solve for x
    x = 23,978,077,635.21/194,487.21
  6. Step 6: Final answer
    x = 123,288.71

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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.