Finding the Fourth Proportional to 163,431.53, 225,545.15 and 123,074.09
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Solution
The fourth proportional to 163,431.53, 225,545.15 and 123,074.09 is: 169,849.50
Step by Step Solution
- Step 1: Write the proportion equation
163,431.53 : 225,545.15 = 123,074.09 : x - Step 2: Convert to fraction form
163,431.53/225,545.15 = 123,074.09/x - Step 3: Cross multiply
163,431.53x = 225,545.15 × 123,074.09 - Step 4: Simplify right side
163,431.53x = 27,758,764,090.16 - Step 5: Solve for x
x = 27,758,764,090.16/163,431.53 - Step 6: Final answer
x = 169,849.50
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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.