Finding the Fourth Proportional to 120,195.44, 165,855.12 and 66,473.12
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Solution
The fourth proportional to 120,195.44, 165,855.12 and 66,473.12 is: 91,724.84
Step by Step Solution
- Step 1: Write the proportion equation
120,195.44 : 165,855.12 = 66,473.12 : x - Step 2: Convert to fraction form
120,195.44/165,855.12 = 66,473.12/x - Step 3: Cross multiply
120,195.44x = 165,855.12 × 66,473.12 - Step 4: Simplify right side
120,195.44x = 11,024,907,294.37 - Step 5: Solve for x
x = 11,024,907,294.37/120,195.44 - Step 6: Final answer
x = 91,724.84
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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.