Finding the Fourth Proportional to 131,452.36, 181,191.73 and 102,722.09
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Solution
The fourth proportional to 131,452.36, 181,191.73 and 102,722.09 is: 141,590.41
Step by Step Solution
- Step 1: Write the proportion equation
131,452.36 : 181,191.73 = 102,722.09 : x - Step 2: Convert to fraction form
131,452.36/181,191.73 = 102,722.09/x - Step 3: Cross multiply
131,452.36x = 181,191.73 × 102,722.09 - Step 4: Simplify right side
131,452.36x = 18,612,393,196.32 - Step 5: Solve for x
x = 18,612,393,196.32/131,452.36 - Step 6: Final answer
x = 141,590.41
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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.