Finding the Fourth Proportional to 135,213.40, 202,820.10 and 88,211.80
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Solution
The fourth proportional to 135,213.40, 202,820.10 and 88,211.80 is: 132,317.70
Step by Step Solution
- Step 1: Write the proportion equation
135,213.40 : 202,820.10 = 88,211.80 : x - Step 2: Convert to fraction form
135,213.40/202,820.10 = 88,211.80/x - Step 3: Cross multiply
135,213.40x = 202,820.10 × 88,211.80 - Step 4: Simplify right side
135,213.40x = 17,891,126,097.18 - Step 5: Solve for x
x = 17,891,126,097.18/135,213.40 - Step 6: Final answer
x = 132,317.70
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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.