Finding the Fourth Proportional to 121,134.26, 181,701.66 and 36,894.80
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Solution
The fourth proportional to 121,134.26, 181,701.66 and 36,894.80 is: 55,342.28
Step by Step Solution
- Step 1: Write the proportion equation
121,134.26 : 181,701.66 = 36,894.80 : x - Step 2: Convert to fraction form
121,134.26/181,701.66 = 36,894.80/x - Step 3: Cross multiply
121,134.26x = 181,701.66 × 36,894.80 - Step 4: Simplify right side
121,134.26x = 6,703,846,405.37 - Step 5: Solve for x
x = 6,703,846,405.37/121,134.26 - Step 6: Final answer
x = 55,342.28
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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.