Finding the Fourth Proportional to 131,293.82, 181,185.99 and 74,703.98
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Solution
The fourth proportional to 131,293.82, 181,185.99 and 74,703.98 is: 103,091.79
Step by Step Solution
- Step 1: Write the proportion equation
131,293.82 : 181,185.99 = 74,703.98 : x - Step 2: Convert to fraction form
131,293.82/181,185.99 = 74,703.98/x - Step 3: Cross multiply
131,293.82x = 181,185.99 × 74,703.98 - Step 4: Simplify right side
131,293.82x = 13,535,314,573.24 - Step 5: Solve for x
x = 13,535,314,573.24/131,293.82 - Step 6: Final answer
x = 103,091.79
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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.