Finding the Fourth Proportional to 122,146.99, 183,213.50 and 72,542.18
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Solution
The fourth proportional to 122,146.99, 183,213.50 and 72,542.18 is: 108,809.12
Step by Step Solution
- Step 1: Write the proportion equation
122,146.99 : 183,213.50 = 72,542.18 : x - Step 2: Convert to fraction form
122,146.99/183,213.50 = 72,542.18/x - Step 3: Cross multiply
122,146.99x = 183,213.50 × 72,542.18 - Step 4: Simplify right side
122,146.99x = 13,290,706,790.75 - Step 5: Solve for x
x = 13,290,706,790.75/122,146.99 - Step 6: Final answer
x = 108,809.12
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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.