Finding the Fourth Proportional to 135,878.10, 202,902.18 and 110,967.60
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Solution
The fourth proportional to 135,878.10, 202,902.18 and 110,967.60 is: 165,704.17
Step by Step Solution
- Step 1: Write the proportion equation
135,878.10 : 202,902.18 = 110,967.60 : x - Step 2: Convert to fraction form
135,878.10/202,902.18 = 110,967.60/x - Step 3: Cross multiply
135,878.10x = 202,902.18 × 110,967.60 - Step 4: Simplify right side
135,878.10x = 22,515,567,949.37 - Step 5: Solve for x
x = 22,515,567,949.37/135,878.10 - Step 6: Final answer
x = 165,704.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.