Finding the Fourth Proportional to 120,764.49, 166,654.36 and 66,317.70
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Solution
The fourth proportional to 120,764.49, 166,654.36 and 66,317.70 is: 91,518.08
Step by Step Solution
- Step 1: Write the proportion equation
120,764.49 : 166,654.36 = 66,317.70 : x - Step 2: Convert to fraction form
120,764.49/166,654.36 = 66,317.70/x - Step 3: Cross multiply
120,764.49x = 166,654.36 × 66,317.70 - Step 4: Simplify right side
120,764.49x = 11,052,133,850.17 - Step 5: Solve for x
x = 11,052,133,850.17/120,764.49 - Step 6: Final answer
x = 91,518.08
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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.