Finding the Fourth Proportional to 212,077.84, 318,108.45 and 71,836.46
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Solution
The fourth proportional to 212,077.84, 318,108.45 and 71,836.46 is: 107,751.88
Step by Step Solution
- Step 1: Write the proportion equation
212,077.84 : 318,108.45 = 71,836.46 : x - Step 2: Convert to fraction form
212,077.84/318,108.45 = 71,836.46/x - Step 3: Cross multiply
212,077.84x = 318,108.45 × 71,836.46 - Step 4: Simplify right side
212,077.84x = 22,851,784,944.09 - Step 5: Solve for x
x = 22,851,784,944.09/212,077.84 - Step 6: Final answer
x = 107,751.88
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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.