Finding the Fourth Proportional to 154,523.44, 213,205.80 and 87,455.44
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Solution
The fourth proportional to 154,523.44, 213,205.80 and 87,455.44 is: 120,667.82
Step by Step Solution
- Step 1: Write the proportion equation
154,523.44 : 213,205.80 = 87,455.44 : x - Step 2: Convert to fraction form
154,523.44/213,205.80 = 87,455.44/x - Step 3: Cross multiply
154,523.44x = 213,205.80 × 87,455.44 - Step 4: Simplify right side
154,523.44x = 18,646,007,049.55 - Step 5: Solve for x
x = 18,646,007,049.55/154,523.44 - Step 6: Final answer
x = 120,667.82
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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.