Finding the Fourth Proportional to 135,943.80, 203,915.70 and 122,165.70
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Solution
The fourth proportional to 135,943.80, 203,915.70 and 122,165.70 is: 183,248.55
Step by Step Solution
- Step 1: Write the proportion equation
135,943.80 : 203,915.70 = 122,165.70 : x - Step 2: Convert to fraction form
135,943.80/203,915.70 = 122,165.70/x - Step 3: Cross multiply
135,943.80x = 203,915.70 × 122,165.70 - Step 4: Simplify right side
135,943.80x = 24,911,504,231.49 - Step 5: Solve for x
x = 24,911,504,231.49/135,943.80 - Step 6: Final answer
x = 183,248.55
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1.5x scale
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.