Home / 209,918.43-289,690.47-114,425.15

Finding the Fourth Proportional to 209,918.43, 289,690.47 and 114,425.15

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Solution

The fourth proportional to 209,918.43, 289,690.47 and 114,425.15 is: 157,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,918.43 : 289,690.47 = 114,425.15 : x
  2. Step 2: Convert to fraction form
    209,918.43/289,690.47 = 114,425.15/x
  3. Step 3: Cross multiply
    209,918.43x = 289,690.47 × 114,425.15
  4. Step 4: Simplify right side
    209,918.43x = 33,147,874,034.87
  5. Step 5: Solve for x
    x = 33,147,874,034.87/209,918.43
  6. Step 6: Final answer
    x = 157,908.36

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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.