Home / 199,986.57-299,881.44-81,626.13

Finding the Fourth Proportional to 199,986.57, 299,881.44 and 81,626.13

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Solution

The fourth proportional to 199,986.57, 299,881.44 and 81,626.13 is: 122,399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,986.57 : 299,881.44 = 81,626.13 : x
  2. Step 2: Convert to fraction form
    199,986.57/299,881.44 = 81,626.13/x
  3. Step 3: Cross multiply
    199,986.57x = 299,881.44 × 81,626.13
  4. Step 4: Simplify right side
    199,986.57x = 24,478,161,406.03
  5. Step 5: Solve for x
    x = 24,478,161,406.03/199,986.57
  6. Step 6: Final answer
    x = 122,399.03

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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.