Finding the Fourth Proportional to 121,527.36, 167,717.21 and 67,090.19
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Solution
The fourth proportional to 121,527.36, 167,717.21 and 67,090.19 is: 92,589.67
Step by Step Solution
- Step 1: Write the proportion equation
121,527.36 : 167,717.21 = 67,090.19 : x - Step 2: Convert to fraction form
121,527.36/167,717.21 = 67,090.19/x - Step 3: Cross multiply
121,527.36x = 167,717.21 × 67,090.19 - Step 4: Simplify right side
121,527.36x = 11,252,178,311.13 - Step 5: Solve for x
x = 11,252,178,311.13/121,527.36 - Step 6: Final answer
x = 92,589.67
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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.