Finding the Fourth Proportional to 121,163.05, 181,770.72 and 36,921.03
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Solution
The fourth proportional to 121,163.05, 181,770.72 and 36,921.03 is: 55,389.51
Step by Step Solution
- Step 1: Write the proportion equation
121,163.05 : 181,770.72 = 36,921.03 : x - Step 2: Convert to fraction form
121,163.05/181,770.72 = 36,921.03/x - Step 3: Cross multiply
121,163.05x = 181,770.72 × 36,921.03 - Step 4: Simplify right side
121,163.05x = 6,711,162,206.24 - Step 5: Solve for x
x = 6,711,162,206.24/121,163.05 - Step 6: Final answer
x = 55,389.51
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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.