Finding the Fourth Proportional to 144,426.62, 199,311.36 and 80,763.06
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Solution
The fourth proportional to 144,426.62, 199,311.36 and 80,763.06 is: 111,454.49
Step by Step Solution
- Step 1: Write the proportion equation
144,426.62 : 199,311.36 = 80,763.06 : x - Step 2: Convert to fraction form
144,426.62/199,311.36 = 80,763.06/x - Step 3: Cross multiply
144,426.62x = 199,311.36 × 80,763.06 - Step 4: Simplify right side
144,426.62x = 16,096,995,326.36 - Step 5: Solve for x
x = 16,096,995,326.36/144,426.62 - Step 6: Final answer
x = 111,454.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.