Finding the Fourth Proportional to 190,129.75, 285,474.98 and 106,054.18
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Solution
The fourth proportional to 190,129.75, 285,474.98 and 106,054.18 is: 159,237.65
Step by Step Solution
- Step 1: Write the proportion equation
190,129.75 : 285,474.98 = 106,054.18 : x - Step 2: Convert to fraction form
190,129.75/285,474.98 = 106,054.18/x - Step 3: Cross multiply
190,129.75x = 285,474.98 × 106,054.18 - Step 4: Simplify right side
190,129.75x = 30,275,815,179.55 - Step 5: Solve for x
x = 30,275,815,179.55/190,129.75 - Step 6: Final answer
x = 159,237.65
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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.