Home / 100,738.36-151,112.94-25,859.18

Finding the Fourth Proportional to 100,738.36, 151,112.94 and 25,859.18

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Solution

The fourth proportional to 100,738.36, 151,112.94 and 25,859.18 is: 38,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,738.36 : 151,112.94 = 25,859.18 : x
  2. Step 2: Convert to fraction form
    100,738.36/151,112.94 = 25,859.18/x
  3. Step 3: Cross multiply
    100,738.36x = 151,112.94 × 25,859.18
  4. Step 4: Simplify right side
    100,738.36x = 3,907,656,715.79
  5. Step 5: Solve for x
    x = 3,907,656,715.79/100,738.36
  6. Step 6: Final answer
    x = 38,790.16

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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.