Finding the Fourth Proportional to 149,236.20, 205,951.14 and 85,576.68
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Solution
The fourth proportional to 149,236.20, 205,951.14 and 85,576.68 is: 118,098.79
Step by Step Solution
- Step 1: Write the proportion equation
149,236.20 : 205,951.14 = 85,576.68 : x - Step 2: Convert to fraction form
149,236.20/205,951.14 = 85,576.68/x - Step 3: Cross multiply
149,236.20x = 205,951.14 × 85,576.68 - Step 4: Simplify right side
149,236.20x = 17,624,614,803.42 - Step 5: Solve for x
x = 17,624,614,803.42/149,236.20 - Step 6: Final answer
x = 118,098.79
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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.