Finding the Fourth Proportional to 135,486.68, 203,186.96 and 126,641.62
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Solution
The fourth proportional to 135,486.68, 203,186.96 and 126,641.62 is: 189,922.17
Step by Step Solution
- Step 1: Write the proportion equation
135,486.68 : 203,186.96 = 126,641.62 : x - Step 2: Convert to fraction form
135,486.68/203,186.96 = 126,641.62/x - Step 3: Cross multiply
135,486.68x = 203,186.96 × 126,641.62 - Step 4: Simplify right side
135,486.68x = 25,731,924,636.10 - Step 5: Solve for x
x = 25,731,924,636.10/135,486.68 - Step 6: Final answer
x = 189,922.17
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1.5x scale
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.