Finding the Fourth Proportional to 121,818.18, 182,704.94 and 55,242.30
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Solution
The fourth proportional to 121,818.18, 182,704.94 and 55,242.30 is: 82,853.32
Step by Step Solution
- Step 1: Write the proportion equation
121,818.18 : 182,704.94 = 55,242.30 : x - Step 2: Convert to fraction form
121,818.18/182,704.94 = 55,242.30/x - Step 3: Cross multiply
121,818.18x = 182,704.94 × 55,242.30 - Step 4: Simplify right side
121,818.18x = 10,093,041,106.96 - Step 5: Solve for x
x = 10,093,041,106.96/121,818.18 - Step 6: Final answer
x = 82,853.32
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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.