Finding the Fourth Proportional to 157,163.05, 216,889.71 and 96,768.54
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Solution
The fourth proportional to 157,163.05, 216,889.71 and 96,768.54 is: 133,543.48
Step by Step Solution
- Step 1: Write the proportion equation
157,163.05 : 216,889.71 = 96,768.54 : x - Step 2: Convert to fraction form
157,163.05/216,889.71 = 96,768.54/x - Step 3: Cross multiply
157,163.05x = 216,889.71 × 96,768.54 - Step 4: Simplify right side
157,163.05x = 20,988,100,577.72 - Step 5: Solve for x
x = 20,988,100,577.72/157,163.05 - Step 6: Final answer
x = 133,543.48
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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.