Finding the Fourth Proportional to 103,137.36, 154,716.84 and 43,979.28
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Solution
The fourth proportional to 103,137.36, 154,716.84 and 43,979.28 is: 65,973.53
Step by Step Solution
- Step 1: Write the proportion equation
103,137.36 : 154,716.84 = 43,979.28 : x - Step 2: Convert to fraction form
103,137.36/154,716.84 = 43,979.28/x - Step 3: Cross multiply
103,137.36x = 154,716.84 × 43,979.28 - Step 4: Simplify right side
103,137.36x = 6,804,335,227.08 - Step 5: Solve for x
x = 6,804,335,227.08/103,137.36 - Step 6: Final answer
x = 65,973.53
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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.