Finding the Fourth Proportional to 131,687.98, 197,485.26 and 47,425.54
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Solution
The fourth proportional to 131,687.98, 197,485.26 and 47,425.54 is: 71,121.49
Step by Step Solution
- Step 1: Write the proportion equation
131,687.98 : 197,485.26 = 47,425.54 : x - Step 2: Convert to fraction form
131,687.98/197,485.26 = 47,425.54/x - Step 3: Cross multiply
131,687.98x = 197,485.26 × 47,425.54 - Step 4: Simplify right side
131,687.98x = 9,365,845,097.54 - Step 5: Solve for x
x = 9,365,845,097.54/131,687.98 - Step 6: Final answer
x = 71,121.49
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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.