Finding the Fourth Proportional to 138,104.26, 190,691.11 and 107,837.09
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Solution
The fourth proportional to 138,104.26, 190,691.11 and 107,837.09 is: 148,898.92
Step by Step Solution
- Step 1: Write the proportion equation
138,104.26 : 190,691.11 = 107,837.09 : x - Step 2: Convert to fraction form
138,104.26/190,691.11 = 107,837.09/x - Step 3: Cross multiply
138,104.26x = 190,691.11 × 107,837.09 - Step 4: Simplify right side
138,104.26x = 20,563,574,287.70 - Step 5: Solve for x
x = 20,563,574,287.70/138,104.26 - Step 6: Final answer
x = 148,898.92
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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.