Finding the Fourth Proportional to 131,175.12, 181,020.82 and 74,586.49
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Solution
The fourth proportional to 131,175.12, 181,020.82 and 74,586.49 is: 102,928.88
Step by Step Solution
- Step 1: Write the proportion equation
131,175.12 : 181,020.82 = 74,586.49 : x - Step 2: Convert to fraction form
131,175.12/181,020.82 = 74,586.49/x - Step 3: Cross multiply
131,175.12x = 181,020.82 × 74,586.49 - Step 4: Simplify right side
131,175.12x = 13,501,707,580.72 - Step 5: Solve for x
x = 13,501,707,580.72/131,175.12 - Step 6: Final answer
x = 102,928.88
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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.