Finding the Fourth Proportional to 135,990.54, 203,979.58 and 47,250.99
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Solution
The fourth proportional to 135,990.54, 203,979.58 and 47,250.99 is: 70,874.32
Step by Step Solution
- Step 1: Write the proportion equation
135,990.54 : 203,979.58 = 47,250.99 : x - Step 2: Convert to fraction form
135,990.54/203,979.58 = 47,250.99/x - Step 3: Cross multiply
135,990.54x = 203,979.58 × 47,250.99 - Step 4: Simplify right side
135,990.54x = 9,638,236,976.66 - Step 5: Solve for x
x = 9,638,236,976.66/135,990.54 - Step 6: Final answer
x = 70,874.32
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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.