Home / 112,110.97-154,625.66-71,828.51

Finding the Fourth Proportional to 112,110.97, 154,625.66 and 71,828.51

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Solution

The fourth proportional to 112,110.97, 154,625.66 and 71,828.51 is: 99,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,110.97 : 154,625.66 = 71,828.51 : x
  2. Step 2: Convert to fraction form
    112,110.97/154,625.66 = 71,828.51/x
  3. Step 3: Cross multiply
    112,110.97x = 154,625.66 × 71,828.51
  4. Step 4: Simplify right side
    112,110.97x = 11,106,529,902.65
  5. Step 5: Solve for x
    x = 11,106,529,902.65/112,110.97
  6. Step 6: Final answer
    x = 99,067.29

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1.5x scale

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.