Home / 216,525.08-324,766.69-66,725.15

Finding the Fourth Proportional to 216,525.08, 324,766.69 and 66,725.15

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Solution

The fourth proportional to 216,525.08, 324,766.69 and 66,725.15 is: 100,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,525.08 : 324,766.69 = 66,725.15 : x
  2. Step 2: Convert to fraction form
    216,525.08/324,766.69 = 66,725.15/x
  3. Step 3: Cross multiply
    216,525.08x = 324,766.69 × 66,725.15
  4. Step 4: Simplify right side
    216,525.08x = 21,670,104,314.61
  5. Step 5: Solve for x
    x = 21,670,104,314.61/216,525.08
  6. Step 6: Final answer
    x = 100,081.27

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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.