Finding the Fourth Proportional to 122,668.87, 169,300.97 and 68,958.31
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Solution
The fourth proportional to 122,668.87, 169,300.97 and 68,958.31 is: 95,172.55
Step by Step Solution
- Step 1: Write the proportion equation
122,668.87 : 169,300.97 = 68,958.31 : x - Step 2: Convert to fraction form
122,668.87/169,300.97 = 68,958.31/x - Step 3: Cross multiply
122,668.87x = 169,300.97 × 68,958.31 - Step 4: Simplify right side
122,668.87x = 11,674,708,600.16 - Step 5: Solve for x
x = 11,674,708,600.16/122,668.87 - Step 6: Final answer
x = 95,172.55
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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.