Home / 216,549.23-324,858.88-66,754.49

Finding the Fourth Proportional to 216,549.23, 324,858.88 and 66,754.49

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Solution

The fourth proportional to 216,549.23, 324,858.88 and 66,754.49 is: 100,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,549.23 : 324,858.88 = 66,754.49 : x
  2. Step 2: Convert to fraction form
    216,549.23/324,858.88 = 66,754.49/x
  3. Step 3: Cross multiply
    216,549.23x = 324,858.88 × 66,754.49
  4. Step 4: Simplify right side
    216,549.23x = 21,685,789,184.89
  5. Step 5: Solve for x
    x = 21,685,789,184.89/216,549.23
  6. Step 6: Final answer
    x = 100,142.54

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1.5x scale

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.