Finding the Fourth Proportional to 145,644.97, 218,597.66 and 74,616.00
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Solution
The fourth proportional to 145,644.97, 218,597.66 and 74,616.00 is: 111,990.70
Step by Step Solution
- Step 1: Write the proportion equation
145,644.97 : 218,597.66 = 74,616.00 : x - Step 2: Convert to fraction form
145,644.97/218,597.66 = 74,616.00/x - Step 3: Cross multiply
145,644.97x = 218,597.66 × 74,616.00 - Step 4: Simplify right side
145,644.97x = 16,310,882,130.63 - Step 5: Solve for x
x = 16,310,882,130.63/145,644.97 - Step 6: Final answer
x = 111,990.70
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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.