Finding the Fourth Proportional to 120,713.09, 166,604.68 and 69,716.65
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Solution
The fourth proportional to 120,713.09, 166,604.68 and 69,716.65 is: 96,220.89
Step by Step Solution
- Step 1: Write the proportion equation
120,713.09 : 166,604.68 = 69,716.65 : x - Step 2: Convert to fraction form
120,713.09/166,604.68 = 69,716.65/x - Step 3: Cross multiply
120,713.09x = 166,604.68 × 69,716.65 - Step 4: Simplify right side
120,713.09x = 11,615,120,829.86 - Step 5: Solve for x
x = 11,615,120,829.86/120,713.09 - Step 6: Final answer
x = 96,220.89
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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.