Finding the Fourth Proportional to 112,270.67, 154,959.53 and 74,037.09
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Solution
The fourth proportional to 112,270.67, 154,959.53 and 74,037.09 is: 102,188.33
Step by Step Solution
- Step 1: Write the proportion equation
112,270.67 : 154,959.53 = 74,037.09 : x - Step 2: Convert to fraction form
112,270.67/154,959.53 = 74,037.09/x - Step 3: Cross multiply
112,270.67x = 154,959.53 × 74,037.09 - Step 4: Simplify right side
112,270.67x = 11,472,752,668.97 - Step 5: Solve for x
x = 11,472,752,668.97/112,270.67 - Step 6: Final answer
x = 102,188.33
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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.