Finding the Fourth Proportional to 131,175.62, 181,021.51 and 74,586.99
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Solution
The fourth proportional to 131,175.62, 181,021.51 and 74,586.99 is: 102,929.57
Step by Step Solution
- Step 1: Write the proportion equation
131,175.62 : 181,021.51 = 74,586.99 : x - Step 2: Convert to fraction form
131,175.62/181,021.51 = 74,586.99/x - Step 3: Cross multiply
131,175.62x = 181,021.51 × 74,586.99 - Step 4: Simplify right side
131,175.62x = 13,501,849,556.15 - Step 5: Solve for x
x = 13,501,849,556.15/131,175.62 - Step 6: Final answer
x = 102,929.57
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1.5x scale
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.