Finding the Fourth Proportional to 220,161.42, 303,822.74 and 124,668.09
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Solution
The fourth proportional to 220,161.42, 303,822.74 and 124,668.09 is: 172,041.95
Step by Step Solution
- Step 1: Write the proportion equation
220,161.42 : 303,822.74 = 124,668.09 : x - Step 2: Convert to fraction form
220,161.42/303,822.74 = 124,668.09/x - Step 3: Cross multiply
220,161.42x = 303,822.74 × 124,668.09 - Step 4: Simplify right side
220,161.42x = 37,877,000,071.03 - Step 5: Solve for x
x = 37,877,000,071.03/220,161.42 - Step 6: Final answer
x = 172,041.95
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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.