Finding the Fourth Proportional to 125,311.14, 172,929.60 and 68,722.92
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Solution
The fourth proportional to 125,311.14, 172,929.60 and 68,722.92 is: 94,837.75
Step by Step Solution
- Step 1: Write the proportion equation
125,311.14 : 172,929.60 = 68,722.92 : x - Step 2: Convert to fraction form
125,311.14/172,929.60 = 68,722.92/x - Step 3: Cross multiply
125,311.14x = 172,929.60 × 68,722.92 - Step 4: Simplify right side
125,311.14x = 11,884,227,066.43 - Step 5: Solve for x
x = 11,884,227,066.43/125,311.14 - Step 6: Final answer
x = 94,837.75
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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.