Finding the Fourth Proportional to 125,175.75, 172,742.63 and 68,587.12
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Solution
The fourth proportional to 125,175.75, 172,742.63 and 68,587.12 is: 94,650.28
Step by Step Solution
- Step 1: Write the proportion equation
125,175.75 : 172,742.63 = 68,587.12 : x - Step 2: Convert to fraction form
125,175.75/172,742.63 = 68,587.12/x - Step 3: Cross multiply
125,175.75x = 172,742.63 × 68,587.12 - Step 4: Simplify right side
125,175.75x = 11,847,919,492.93 - Step 5: Solve for x
x = 11,847,919,492.93/125,175.75 - Step 6: Final answer
x = 94,650.28
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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.