Finding the Fourth Proportional to 121,422.30, 182,132.28 and 68,114.19
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Solution
The fourth proportional to 121,422.30, 182,132.28 and 68,114.19 is: 102,170.63
Step by Step Solution
- Step 1: Write the proportion equation
121,422.30 : 182,132.28 = 68,114.19 : x - Step 2: Convert to fraction form
121,422.30/182,132.28 = 68,114.19/x - Step 3: Cross multiply
121,422.30x = 182,132.28 × 68,114.19 - Step 4: Simplify right side
121,422.30x = 12,405,792,725.05 - Step 5: Solve for x
x = 12,405,792,725.05/121,422.30 - Step 6: Final answer
x = 102,170.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.