Finding the Fourth Proportional to 126,144.36, 174,121.38 and 75,173.09
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Solution
The fourth proportional to 126,144.36, 174,121.38 and 75,173.09 is: 103,763.98
Step by Step Solution
- Step 1: Write the proportion equation
126,144.36 : 174,121.38 = 75,173.09 : x - Step 2: Convert to fraction form
126,144.36/174,121.38 = 75,173.09/x - Step 3: Cross multiply
126,144.36x = 174,121.38 × 75,173.09 - Step 4: Simplify right side
126,144.36x = 13,089,241,299.06 - Step 5: Solve for x
x = 13,089,241,299.06/126,144.36 - Step 6: Final answer
x = 103,763.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.