Home / 202,083.48-278,891.10-111,447.72

Finding the Fourth Proportional to 202,083.48, 278,891.10 and 111,447.72

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Solution

The fourth proportional to 202,083.48, 278,891.10 and 111,447.72 is: 153,806.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,083.48 : 278,891.10 = 111,447.72 : x
  2. Step 2: Convert to fraction form
    202,083.48/278,891.10 = 111,447.72/x
  3. Step 3: Cross multiply
    202,083.48x = 278,891.10 × 111,447.72
  4. Step 4: Simplify right side
    202,083.48x = 31,081,777,223.29
  5. Step 5: Solve for x
    x = 31,081,777,223.29/202,083.48
  6. Step 6: Final answer
    x = 153,806.62

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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.