Finding the Fourth Proportional to 122,623.12, 183,938.12 and 33,876.62
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Solution
The fourth proportional to 122,623.12, 183,938.12 and 33,876.62 is: 50,815.88
Step by Step Solution
- Step 1: Write the proportion equation
122,623.12 : 183,938.12 = 33,876.62 : x - Step 2: Convert to fraction form
122,623.12/183,938.12 = 33,876.62/x - Step 3: Cross multiply
122,623.12x = 183,938.12 × 33,876.62 - Step 4: Simplify right side
122,623.12x = 6,231,201,713.04 - Step 5: Solve for x
x = 6,231,201,713.04/122,623.12 - Step 6: Final answer
x = 50,815.88
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1.5x scale
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.