Finding the Fourth Proportional to 117,163.68, 161,660.56 and 69,431.84
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Solution
The fourth proportional to 117,163.68, 161,660.56 and 69,431.84 is: 95,800.94
Step by Step Solution
- Step 1: Write the proportion equation
117,163.68 : 161,660.56 = 69,431.84 : x - Step 2: Convert to fraction form
117,163.68/161,660.56 = 69,431.84/x - Step 3: Cross multiply
117,163.68x = 161,660.56 × 69,431.84 - Step 4: Simplify right side
117,163.68x = 11,224,390,136.23 - Step 5: Solve for x
x = 11,224,390,136.23/117,163.68 - Step 6: Final answer
x = 95,800.94
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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.