Finding the Fourth Proportional to 143,421.84, 197,918.64 and 82,984.10
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Solution
The fourth proportional to 143,421.84, 197,918.64 and 82,984.10 is: 114,516.03
Step by Step Solution
- Step 1: Write the proportion equation
143,421.84 : 197,918.64 = 82,984.10 : x - Step 2: Convert to fraction form
143,421.84/197,918.64 = 82,984.10/x - Step 3: Cross multiply
143,421.84x = 197,918.64 × 82,984.10 - Step 4: Simplify right side
143,421.84x = 16,424,099,224.03 - Step 5: Solve for x
x = 16,424,099,224.03/143,421.84 - Step 6: Final answer
x = 114,516.03
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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.