Finding the Fourth Proportional to 119,861.75, 178,810.21 and 116,603.80
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Solution
The fourth proportional to 119,861.75, 178,810.21 and 116,603.80 is: 173,949.99
Step by Step Solution
- Step 1: Write the proportion equation
119,861.75 : 178,810.21 = 116,603.80 : x - Step 2: Convert to fraction form
119,861.75/178,810.21 = 116,603.80/x - Step 3: Cross multiply
119,861.75x = 178,810.21 × 116,603.80 - Step 4: Simplify right side
119,861.75x = 20,849,949,381.78 - Step 5: Solve for x
x = 20,849,949,381.78/119,861.75 - Step 6: Final answer
x = 173,949.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.