Home / 216,664.48-325,031.73-66,869.77

Finding the Fourth Proportional to 216,664.48, 325,031.73 and 66,869.77

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Solution

The fourth proportional to 216,664.48, 325,031.73 and 66,869.77 is: 100,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,664.48 : 325,031.73 = 66,869.77 : x
  2. Step 2: Convert to fraction form
    216,664.48/325,031.73 = 66,869.77/x
  3. Step 3: Cross multiply
    216,664.48x = 325,031.73 × 66,869.77
  4. Step 4: Simplify right side
    216,664.48x = 21,734,797,027.80
  5. Step 5: Solve for x
    x = 21,734,797,027.80/216,664.48
  6. Step 6: Final answer
    x = 100,315.46

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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.