Finding the Fourth Proportional to 191,976.40, 264,921.48 and 107,107.84
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Solution
The fourth proportional to 191,976.40, 264,921.48 and 107,107.84 is: 147,805.50
Step by Step Solution
- Step 1: Write the proportion equation
191,976.40 : 264,921.48 = 107,107.84 : x - Step 2: Convert to fraction form
191,976.40/264,921.48 = 107,107.84/x - Step 3: Cross multiply
191,976.40x = 264,921.48 × 107,107.84 - Step 4: Simplify right side
191,976.40x = 28,375,167,492.40 - Step 5: Solve for x
x = 28,375,167,492.40/191,976.40 - Step 6: Final answer
x = 147,805.50
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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.