Finding the Fourth Proportional to 154,226.88, 212,770.08 and 103,942.08
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Solution
The fourth proportional to 154,226.88, 212,770.08 and 103,942.08 is: 143,397.60
Step by Step Solution
- Step 1: Write the proportion equation
154,226.88 : 212,770.08 = 103,942.08 : x - Step 2: Convert to fraction form
154,226.88/212,770.08 = 103,942.08/x - Step 3: Cross multiply
154,226.88x = 212,770.08 × 103,942.08 - Step 4: Simplify right side
154,226.88x = 22,115,764,676.97 - Step 5: Solve for x
x = 22,115,764,676.97/154,226.88 - Step 6: Final answer
x = 143,397.60
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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.