Finding the Fourth Proportional to 122,428.36, 183,655.58 and 43,549.96
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Solution
The fourth proportional to 122,428.36, 183,655.58 and 43,549.96 is: 65,329.58
Step by Step Solution
- Step 1: Write the proportion equation
122,428.36 : 183,655.58 = 43,549.96 : x - Step 2: Convert to fraction form
122,428.36/183,655.58 = 43,549.96/x - Step 3: Cross multiply
122,428.36x = 183,655.58 × 43,549.96 - Step 4: Simplify right side
122,428.36x = 7,998,193,162.78 - Step 5: Solve for x
x = 7,998,193,162.78/122,428.36 - Step 6: Final answer
x = 65,329.58
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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.