Finding the Fourth Proportional to 198,026.97, 273,291.68 and 113,142.21
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Solution
The fourth proportional to 198,026.97, 273,291.68 and 113,142.21 is: 156,144.51
Step by Step Solution
- Step 1: Write the proportion equation
198,026.97 : 273,291.68 = 113,142.21 : x - Step 2: Convert to fraction form
198,026.97/273,291.68 = 113,142.21/x - Step 3: Cross multiply
198,026.97x = 273,291.68 × 113,142.21 - Step 4: Simplify right side
198,026.97x = 30,920,824,084.10 - Step 5: Solve for x
x = 30,920,824,084.10/198,026.97 - Step 6: Final answer
x = 156,144.51
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1.5x scale
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.