Finding the Fourth Proportional to 134,857.70, 202,286.55 and 72,649.70
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Solution
The fourth proportional to 134,857.70, 202,286.55 and 72,649.70 is: 108,974.55
Step by Step Solution
- Step 1: Write the proportion equation
134,857.70 : 202,286.55 = 72,649.70 : x - Step 2: Convert to fraction form
134,857.70/202,286.55 = 72,649.70/x - Step 3: Cross multiply
134,857.70x = 202,286.55 × 72,649.70 - Step 4: Simplify right side
134,857.70x = 14,696,057,171.54 - Step 5: Solve for x
x = 14,696,057,171.54/134,857.70 - Step 6: Final answer
x = 108,974.55
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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.