Finding the Fourth Proportional to 154,785.26, 213,524.96 and 101,101.70
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Solution
The fourth proportional to 154,785.26, 213,524.96 and 101,101.70 is: 139,468.94
Step by Step Solution
- Step 1: Write the proportion equation
154,785.26 : 213,524.96 = 101,101.70 : x - Step 2: Convert to fraction form
154,785.26/213,524.96 = 101,101.70/x - Step 3: Cross multiply
154,785.26x = 213,524.96 × 101,101.70 - Step 4: Simplify right side
154,785.26x = 21,587,734,875.30 - Step 5: Solve for x
x = 21,587,734,875.30/154,785.26 - Step 6: Final answer
x = 139,468.94
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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.