Finding the Fourth Proportional to 131,620.96, 181,636.96 and 74,272.44
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Solution
The fourth proportional to 131,620.96, 181,636.96 and 74,272.44 is: 102,495.99
Step by Step Solution
- Step 1: Write the proportion equation
131,620.96 : 181,636.96 = 74,272.44 : x - Step 2: Convert to fraction form
131,620.96/181,636.96 = 74,272.44/x - Step 3: Cross multiply
131,620.96x = 181,636.96 × 74,272.44 - Step 4: Simplify right side
131,620.96x = 13,490,620,213.38 - Step 5: Solve for x
x = 13,490,620,213.38/131,620.96 - Step 6: Final answer
x = 102,495.99
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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.