Finding the Fourth Proportional to 120,516.14, 180,786.20 and 44,634.99
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Solution
The fourth proportional to 120,516.14, 180,786.20 and 44,634.99 is: 66,956.93
Step by Step Solution
- Step 1: Write the proportion equation
120,516.14 : 180,786.20 = 44,634.99 : x - Step 2: Convert to fraction form
120,516.14/180,786.20 = 44,634.99/x - Step 3: Cross multiply
120,516.14x = 180,786.20 × 44,634.99 - Step 4: Simplify right side
120,516.14x = 8,069,390,683.91 - Step 5: Solve for x
x = 8,069,390,683.91/120,516.14 - Step 6: Final answer
x = 66,956.93
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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.