Home / 199,081.36-274,685.16-113,021.68

Finding the Fourth Proportional to 199,081.36, 274,685.16 and 113,021.68

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Solution

The fourth proportional to 199,081.36, 274,685.16 and 113,021.68 is: 155,943.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,081.36 : 274,685.16 = 113,021.68 : x
  2. Step 2: Convert to fraction form
    199,081.36/274,685.16 = 113,021.68/x
  3. Step 3: Cross multiply
    199,081.36x = 274,685.16 × 113,021.68
  4. Step 4: Simplify right side
    199,081.36x = 31,045,378,254.27
  5. Step 5: Solve for x
    x = 31,045,378,254.27/199,081.36
  6. Step 6: Final answer
    x = 155,943.17

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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.