Home / 221,683.47-332,657.69-81,456.27

Finding the Fourth Proportional to 221,683.47, 332,657.69 and 81,456.27

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Solution

The fourth proportional to 221,683.47, 332,657.69 and 81,456.27 is: 122,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,683.47 : 332,657.69 = 81,456.27 : x
  2. Step 2: Convert to fraction form
    221,683.47/332,657.69 = 81,456.27/x
  3. Step 3: Cross multiply
    221,683.47x = 332,657.69 × 81,456.27
  4. Step 4: Simplify right side
    221,683.47x = 27,097,054,614.22
  5. Step 5: Solve for x
    x = 27,097,054,614.22/221,683.47
  6. Step 6: Final answer
    x = 122,233.09

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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.