Finding the Fourth Proportional to 121,033.86, 181,361.10 and 76,566.66
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Solution
The fourth proportional to 121,033.86, 181,361.10 and 76,566.66 is: 114,729.99
Step by Step Solution
- Step 1: Write the proportion equation
121,033.86 : 181,361.10 = 76,566.66 : x - Step 2: Convert to fraction form
121,033.86/181,361.10 = 76,566.66/x - Step 3: Cross multiply
121,033.86x = 181,361.10 × 76,566.66 - Step 4: Simplify right side
121,033.86x = 13,886,213,680.93 - Step 5: Solve for x
x = 13,886,213,680.93/121,033.86 - Step 6: Final answer
x = 114,729.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.