Finding the Fourth Proportional to 138,787.36, 208,186.80 and 44,015.44
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Solution
The fourth proportional to 138,787.36, 208,186.80 and 44,015.44 is: 66,024.99
Step by Step Solution
- Step 1: Write the proportion equation
138,787.36 : 208,186.80 = 44,015.44 : x - Step 2: Convert to fraction form
138,787.36/208,186.80 = 44,015.44/x - Step 3: Cross multiply
138,787.36x = 208,186.80 × 44,015.44 - Step 4: Simplify right side
138,787.36x = 9,163,433,604.19 - Step 5: Solve for x
x = 9,163,433,604.19/138,787.36 - Step 6: Final answer
x = 66,024.99
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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.