Finding the Fourth Proportional to 139,891.14, 209,878.44 and 131,536.26
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Solution
The fourth proportional to 139,891.14, 209,878.44 and 131,536.26 is: 197,343.63
Step by Step Solution
- Step 1: Write the proportion equation
139,891.14 : 209,878.44 = 131,536.26 : x - Step 2: Convert to fraction form
139,891.14/209,878.44 = 131,536.26/x - Step 3: Cross multiply
139,891.14x = 209,878.44 × 131,536.26 - Step 4: Simplify right side
139,891.14x = 27,606,625,052.23 - Step 5: Solve for x
x = 27,606,625,052.23/139,891.14 - Step 6: Final answer
x = 197,343.63
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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.