Finding the Fourth Proportional to 121,195.26, 181,522.17 and 87,838.68
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Solution
The fourth proportional to 121,195.26, 181,522.17 and 87,838.68 is: 131,561.81
Step by Step Solution
- Step 1: Write the proportion equation
121,195.26 : 181,522.17 = 87,838.68 : x - Step 2: Convert to fraction form
121,195.26/181,522.17 = 87,838.68/x - Step 3: Cross multiply
121,195.26x = 181,522.17 × 87,838.68 - Step 4: Simplify right side
121,195.26x = 15,944,667,803.54 - Step 5: Solve for x
x = 15,944,667,803.54/121,195.26 - Step 6: Final answer
x = 131,561.81
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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.