Finding the Fourth Proportional to 135,247.92, 186,638.76 and 74,821.92
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Solution
The fourth proportional to 135,247.92, 186,638.76 and 74,821.92 is: 103,252.39
Step by Step Solution
- Step 1: Write the proportion equation
135,247.92 : 186,638.76 = 74,821.92 : x - Step 2: Convert to fraction form
135,247.92/186,638.76 = 74,821.92/x - Step 3: Cross multiply
135,247.92x = 186,638.76 × 74,821.92 - Step 4: Simplify right side
135,247.92x = 13,964,670,369.62 - Step 5: Solve for x
x = 13,964,670,369.62/135,247.92 - Step 6: Final answer
x = 103,252.39
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1.5x scale
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.