Finding the Fourth Proportional to 125,027.64, 172,540.26 and 68,442.12
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Solution
The fourth proportional to 125,027.64, 172,540.26 and 68,442.12 is: 94,451.28
Step by Step Solution
- Step 1: Write the proportion equation
125,027.64 : 172,540.26 = 68,442.12 : x - Step 2: Convert to fraction form
125,027.64/172,540.26 = 68,442.12/x - Step 3: Cross multiply
125,027.64x = 172,540.26 × 68,442.12 - Step 4: Simplify right side
125,027.64x = 11,809,021,179.75 - Step 5: Solve for x
x = 11,809,021,179.75/125,027.64 - Step 6: Final answer
x = 94,451.28
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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.