Finding the Fourth Proportional to 122,945.96, 169,663.62 and 69,231.08
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Solution
The fourth proportional to 122,945.96, 169,663.62 and 69,231.08 is: 95,537.87
Step by Step Solution
- Step 1: Write the proportion equation
122,945.96 : 169,663.62 = 69,231.08 : x - Step 2: Convert to fraction form
122,945.96/169,663.62 = 69,231.08/x - Step 3: Cross multiply
122,945.96x = 169,663.62 × 69,231.08 - Step 4: Simplify right side
122,945.96x = 11,745,995,649.31 - Step 5: Solve for x
x = 11,745,995,649.31/122,945.96 - Step 6: Final answer
x = 95,537.87
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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.