Finding the Fourth Proportional to 131,772.80, 181,844.26 and 71,342.96
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Solution
The fourth proportional to 131,772.80, 181,844.26 and 71,342.96 is: 98,452.09
Step by Step Solution
- Step 1: Write the proportion equation
131,772.80 : 181,844.26 = 71,342.96 : x - Step 2: Convert to fraction form
131,772.80/181,844.26 = 71,342.96/x - Step 3: Cross multiply
131,772.80x = 181,844.26 × 71,342.96 - Step 4: Simplify right side
131,772.80x = 12,973,307,767.41 - Step 5: Solve for x
x = 12,973,307,767.41/131,772.80 - Step 6: Final answer
x = 98,452.09
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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.