Finding the Fourth Proportional to 131,825.36, 181,918.10 and 71,394.63
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Solution
The fourth proportional to 131,825.36, 181,918.10 and 71,394.63 is: 98,524.09
Step by Step Solution
- Step 1: Write the proportion equation
131,825.36 : 181,918.10 = 71,394.63 : x - Step 2: Convert to fraction form
131,825.36/181,918.10 = 71,394.63/x - Step 3: Cross multiply
131,825.36x = 181,918.10 × 71,394.63 - Step 4: Simplify right side
131,825.36x = 12,987,974,173.24 - Step 5: Solve for x
x = 12,987,974,173.24/131,825.36 - Step 6: Final answer
x = 98,524.09
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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.