Home / 258,441.84-387,759.96-89,974.80

Finding the Fourth Proportional to 258,441.84, 387,759.96 and 89,974.80

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Solution

The fourth proportional to 258,441.84, 387,759.96 and 89,974.80 is: 134,996.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,441.84 : 387,759.96 = 89,974.80 : x
  2. Step 2: Convert to fraction form
    258,441.84/387,759.96 = 89,974.80/x
  3. Step 3: Cross multiply
    258,441.84x = 387,759.96 × 89,974.80
  4. Step 4: Simplify right side
    258,441.84x = 34,888,624,849.01
  5. Step 5: Solve for x
    x = 34,888,624,849.01/258,441.84
  6. Step 6: Final answer
    x = 134,996.04

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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.