Finding the Fourth Proportional to 126,859.36, 190,288.48 and 38,112.48
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Solution
The fourth proportional to 126,859.36, 190,288.48 and 38,112.48 is: 57,168.55
Step by Step Solution
- Step 1: Write the proportion equation
126,859.36 : 190,288.48 = 38,112.48 : x - Step 2: Convert to fraction form
126,859.36/190,288.48 = 38,112.48/x - Step 3: Cross multiply
126,859.36x = 190,288.48 × 38,112.48 - Step 4: Simplify right side
126,859.36x = 7,252,365,888.23 - Step 5: Solve for x
x = 7,252,365,888.23/126,859.36 - Step 6: Final answer
x = 57,168.55
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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.