Finding the Fourth Proportional to 135,048.26, 186,341.08 and 81,336.75
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Solution
The fourth proportional to 135,048.26, 186,341.08 and 81,336.75 is: 112,229.35
Step by Step Solution
- Step 1: Write the proportion equation
135,048.26 : 186,341.08 = 81,336.75 : x - Step 2: Convert to fraction form
135,048.26/186,341.08 = 81,336.75/x - Step 3: Cross multiply
135,048.26x = 186,341.08 × 81,336.75 - Step 4: Simplify right side
135,048.26x = 15,156,377,838.69 - Step 5: Solve for x
x = 15,156,377,838.69/135,048.26 - Step 6: Final answer
x = 112,229.35
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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.