Home / 194,187.94-291,395.09-81,861.26

Finding the Fourth Proportional to 194,187.94, 291,395.09 and 81,861.26

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Solution

The fourth proportional to 194,187.94, 291,395.09 and 81,861.26 is: 122,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,187.94 : 291,395.09 = 81,861.26 : x
  2. Step 2: Convert to fraction form
    194,187.94/291,395.09 = 81,861.26/x
  3. Step 3: Cross multiply
    194,187.94x = 291,395.09 × 81,861.26
  4. Step 4: Simplify right side
    194,187.94x = 23,853,969,225.21
  5. Step 5: Solve for x
    x = 23,853,969,225.21/194,187.94
  6. Step 6: Final answer
    x = 122,839.60

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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.