Home / 321,196.84-481,839.48-107,981.28

Finding the Fourth Proportional to 321,196.84, 481,839.48 and 107,981.28

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Solution

The fourth proportional to 321,196.84, 481,839.48 and 107,981.28 is: 161,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,196.84 : 481,839.48 = 107,981.28 : x
  2. Step 2: Convert to fraction form
    321,196.84/481,839.48 = 107,981.28/x
  3. Step 3: Cross multiply
    321,196.84x = 481,839.48 × 107,981.28
  4. Step 4: Simplify right side
    321,196.84x = 52,029,643,804.93
  5. Step 5: Solve for x
    x = 52,029,643,804.93/321,196.84
  6. Step 6: Final answer
    x = 161,986.79

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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.