Finding the Fourth Proportional to 122,715.96, 169,347.18 and 69,723.96
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Solution
The fourth proportional to 122,715.96, 169,347.18 and 69,723.96 is: 96,218.58
Step by Step Solution
- Step 1: Write the proportion equation
122,715.96 : 169,347.18 = 69,723.96 : x - Step 2: Convert to fraction form
122,715.96/169,347.18 = 69,723.96/x - Step 3: Cross multiply
122,715.96x = 169,347.18 × 69,723.96 - Step 4: Simplify right side
122,715.96x = 11,807,556,004.43 - Step 5: Solve for x
x = 11,807,556,004.43/122,715.96 - Step 6: Final answer
x = 96,218.58
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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.