Home / 216,213.97-324,212.07-72,068.76

Finding the Fourth Proportional to 216,213.97, 324,212.07 and 72,068.76

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Solution

The fourth proportional to 216,213.97, 324,212.07 and 72,068.76 is: 108,066.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,213.97 : 324,212.07 = 72,068.76 : x
  2. Step 2: Convert to fraction form
    216,213.97/324,212.07 = 72,068.76/x
  3. Step 3: Cross multiply
    216,213.97x = 324,212.07 × 72,068.76
  4. Step 4: Simplify right side
    216,213.97x = 23,365,560,240.87
  5. Step 5: Solve for x
    x = 23,365,560,240.87/216,213.97
  6. Step 6: Final answer
    x = 108,066.84

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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.