Home / 199,686.97-275,099.69-139,147.75

Finding the Fourth Proportional to 199,686.97, 275,099.69 and 139,147.75

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Solution

The fourth proportional to 199,686.97, 275,099.69 and 139,147.75 is: 191,697.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,686.97 : 275,099.69 = 139,147.75 : x
  2. Step 2: Convert to fraction form
    199,686.97/275,099.69 = 139,147.75/x
  3. Step 3: Cross multiply
    199,686.97x = 275,099.69 × 139,147.75
  4. Step 4: Simplify right side
    199,686.97x = 38,279,500,817.96
  5. Step 5: Solve for x
    x = 38,279,500,817.96/199,686.97
  6. Step 6: Final answer
    x = 191,697.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.