Home / 209,913.89-289,678.92-114,418.53

Finding the Fourth Proportional to 209,913.89, 289,678.92 and 114,418.53

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Solution

The fourth proportional to 209,913.89, 289,678.92 and 114,418.53 is: 157,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,913.89 : 289,678.92 = 114,418.53 : x
  2. Step 2: Convert to fraction form
    209,913.89/289,678.92 = 114,418.53/x
  3. Step 3: Cross multiply
    209,913.89x = 289,678.92 × 114,418.53
  4. Step 4: Simplify right side
    209,913.89x = 33,144,636,198.39
  5. Step 5: Solve for x
    x = 33,144,636,198.39/209,913.89
  6. Step 6: Final answer
    x = 157,896.35

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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.