Finding the Fourth Proportional to 143,265.53, 197,694.86 and 82,840.08
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Solution
The fourth proportional to 143,265.53, 197,694.86 and 82,840.08 is: 114,312.62
Step by Step Solution
- Step 1: Write the proportion equation
143,265.53 : 197,694.86 = 82,840.08 : x - Step 2: Convert to fraction form
143,265.53/197,694.86 = 82,840.08/x - Step 3: Cross multiply
143,265.53x = 197,694.86 × 82,840.08 - Step 4: Simplify right side
143,265.53x = 16,377,057,603.79 - Step 5: Solve for x
x = 16,377,057,603.79/143,265.53 - Step 6: Final answer
x = 114,312.62
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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.