Finding the Fourth Proportional to 143,099.44, 214,710.18 and 71,984.68
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Solution
The fourth proportional to 143,099.44, 214,710.18 and 71,984.68 is: 108,007.72
Step by Step Solution
- Step 1: Write the proportion equation
143,099.44 : 214,710.18 = 71,984.68 : x - Step 2: Convert to fraction form
143,099.44/214,710.18 = 71,984.68/x - Step 3: Cross multiply
143,099.44x = 214,710.18 × 71,984.68 - Step 4: Simplify right side
143,099.44x = 15,455,843,600.04 - Step 5: Solve for x
x = 15,455,843,600.04/143,099.44 - Step 6: Final answer
x = 108,007.72
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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.