Finding the Fourth Proportional to 149,221.65, 223,532.67 and 74,114.60
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Solution
The fourth proportional to 149,221.65, 223,532.67 and 74,114.60 is: 111,022.99
Step by Step Solution
- Step 1: Write the proportion equation
149,221.65 : 223,532.67 = 74,114.60 : x - Step 2: Convert to fraction form
149,221.65/223,532.67 = 74,114.60/x - Step 3: Cross multiply
149,221.65x = 223,532.67 × 74,114.60 - Step 4: Simplify right side
149,221.65x = 16,567,034,423.98 - Step 5: Solve for x
x = 16,567,034,423.98/149,221.65 - Step 6: Final answer
x = 111,022.99
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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.