Finding the Fourth Proportional to 121,361.23, 167,369.43 and 76,044.07
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Solution
The fourth proportional to 121,361.23, 167,369.43 and 76,044.07 is: 104,872.48
Step by Step Solution
- Step 1: Write the proportion equation
121,361.23 : 167,369.43 = 76,044.07 : x - Step 2: Convert to fraction form
121,361.23/167,369.43 = 76,044.07/x - Step 3: Cross multiply
121,361.23x = 167,369.43 × 76,044.07 - Step 4: Simplify right side
121,361.23x = 12,727,452,650.78 - Step 5: Solve for x
x = 12,727,452,650.78/121,361.23 - Step 6: Final answer
x = 104,872.48
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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.