Home / 209,180.19-313,645.51-82,838.55

Finding the Fourth Proportional to 209,180.19, 313,645.51 and 82,838.55

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Solution

The fourth proportional to 209,180.19, 313,645.51 and 82,838.55 is: 124,208.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,180.19 : 313,645.51 = 82,838.55 : x
  2. Step 2: Convert to fraction form
    209,180.19/313,645.51 = 82,838.55/x
  3. Step 3: Cross multiply
    209,180.19x = 313,645.51 × 82,838.55
  4. Step 4: Simplify right side
    209,180.19x = 25,981,938,848.22
  5. Step 5: Solve for x
    x = 25,981,938,848.22/209,180.19
  6. Step 6: Final answer
    x = 124,208.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.