Finding the Fourth Proportional to 213,160.64, 319,623.39 and 86,768.44
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Solution
The fourth proportional to 213,160.64, 319,623.39 and 86,768.44 is: 130,104.80
Step by Step Solution
- Step 1: Write the proportion equation
213,160.64 : 319,623.39 = 86,768.44 : x - Step 2: Convert to fraction form
213,160.64/319,623.39 = 86,768.44/x - Step 3: Cross multiply
213,160.64x = 319,623.39 × 86,768.44 - Step 4: Simplify right side
213,160.64x = 27,733,222,138.75 - Step 5: Solve for x
x = 27,733,222,138.75/213,160.64 - Step 6: Final answer
x = 130,104.80
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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.