Finding the Fourth Proportional to 135,175.84, 202,742.48 and 85,102.65
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Solution
The fourth proportional to 135,175.84, 202,742.48 and 85,102.65 is: 127,640.58
Step by Step Solution
- Step 1: Write the proportion equation
135,175.84 : 202,742.48 = 85,102.65 : x - Step 2: Convert to fraction form
135,175.84/202,742.48 = 85,102.65/x - Step 3: Cross multiply
135,175.84x = 202,742.48 × 85,102.65 - Step 4: Simplify right side
135,175.84x = 17,253,922,528.33 - Step 5: Solve for x
x = 17,253,922,528.33/135,175.84 - Step 6: Final answer
x = 127,640.58
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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.