Home / 209,938.67-289,628.17-123,863.48

Finding the Fourth Proportional to 209,938.67, 289,628.17 and 123,863.48

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Solution

The fourth proportional to 209,938.67, 289,628.17 and 123,863.48 is: 170,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,938.67 : 289,628.17 = 123,863.48 : x
  2. Step 2: Convert to fraction form
    209,938.67/289,628.17 = 123,863.48/x
  3. Step 3: Cross multiply
    209,938.67x = 289,628.17 × 123,863.48
  4. Step 4: Simplify right side
    209,938.67x = 35,874,352,544.72
  5. Step 5: Solve for x
    x = 35,874,352,544.72/209,938.67
  6. Step 6: Final answer
    x = 170,880.15

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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.