Home / 188,205.22-259,705.95-111,711.25

Finding the Fourth Proportional to 188,205.22, 259,705.95 and 111,711.25

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Solution

The fourth proportional to 188,205.22, 259,705.95 and 111,711.25 is: 154,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,205.22 : 259,705.95 = 111,711.25 : x
  2. Step 2: Convert to fraction form
    188,205.22/259,705.95 = 111,711.25/x
  3. Step 3: Cross multiply
    188,205.22x = 259,705.95 × 111,711.25
  4. Step 4: Simplify right side
    188,205.22x = 29,012,076,212.65
  5. Step 5: Solve for x
    x = 29,012,076,212.65/188,205.22
  6. Step 6: Final answer
    x = 154,151.28

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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.