Finding the Fourth Proportional to 120,603.36, 166,412.70 and 66,879.84
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Solution
The fourth proportional to 120,603.36, 166,412.70 and 66,879.84 is: 92,283.12
Step by Step Solution
- Step 1: Write the proportion equation
120,603.36 : 166,412.70 = 66,879.84 : x - Step 2: Convert to fraction form
120,603.36/166,412.70 = 66,879.84/x - Step 3: Cross multiply
120,603.36x = 166,412.70 × 66,879.84 - Step 4: Simplify right side
120,603.36x = 11,129,654,749.97 - Step 5: Solve for x
x = 11,129,654,749.97/120,603.36 - Step 6: Final answer
x = 92,283.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.