Finding the Fourth Proportional to 117,553.92, 162,201.60 and 75,079.68
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Solution
The fourth proportional to 117,553.92, 162,201.60 and 75,079.68 is: 103,595.39
Step by Step Solution
- Step 1: Write the proportion equation
117,553.92 : 162,201.60 = 75,079.68 : x - Step 2: Convert to fraction form
117,553.92/162,201.60 = 75,079.68/x - Step 3: Cross multiply
117,553.92x = 162,201.60 × 75,079.68 - Step 4: Simplify right side
117,553.92x = 12,178,044,223.49 - Step 5: Solve for x
x = 12,178,044,223.49/117,553.92 - Step 6: Final answer
x = 103,595.39
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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.