Home / 221,795.51-332,788.59-72,081.69

Finding the Fourth Proportional to 221,795.51, 332,788.59 and 72,081.69

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Solution

The fourth proportional to 221,795.51, 332,788.59 and 72,081.69 is: 108,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,795.51 : 332,788.59 = 72,081.69 : x
  2. Step 2: Convert to fraction form
    221,795.51/332,788.59 = 72,081.69/x
  3. Step 3: Cross multiply
    221,795.51x = 332,788.59 × 72,081.69
  4. Step 4: Simplify right side
    221,795.51x = 23,987,963,979.92
  5. Step 5: Solve for x
    x = 23,987,963,979.92/221,795.51
  6. Step 6: Final answer
    x = 108,153.51

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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.