Finding the Fourth Proportional to 121,163.60, 181,670.88 and 45,230.96
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Solution
The fourth proportional to 121,163.60, 181,670.88 and 45,230.96 is: 67,818.62
Step by Step Solution
- Step 1: Write the proportion equation
121,163.60 : 181,670.88 = 45,230.96 : x - Step 2: Convert to fraction form
121,163.60/181,670.88 = 45,230.96/x - Step 3: Cross multiply
121,163.60x = 181,670.88 × 45,230.96 - Step 4: Simplify right side
121,163.60x = 8,217,148,306.44 - Step 5: Solve for x
x = 8,217,148,306.44/121,163.60 - Step 6: Final answer
x = 67,818.62
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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.