Finding the Fourth Proportional to 120,651.72, 166,519.35 and 66,953.99
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Solution
The fourth proportional to 120,651.72, 166,519.35 and 66,953.99 is: 92,407.58
Step by Step Solution
- Step 1: Write the proportion equation
120,651.72 : 166,519.35 = 66,953.99 : x - Step 2: Convert to fraction form
120,651.72/166,519.35 = 66,953.99/x - Step 3: Cross multiply
120,651.72x = 166,519.35 × 66,953.99 - Step 4: Simplify right side
120,651.72x = 11,149,134,062.11 - Step 5: Solve for x
x = 11,149,134,062.11/120,651.72 - Step 6: Final answer
x = 92,407.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.