Finding the Fourth Proportional to 147,056.92, 202,974.60 and 83,431.96
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Solution
The fourth proportional to 147,056.92, 202,974.60 and 83,431.96 is: 115,156.56
Step by Step Solution
- Step 1: Write the proportion equation
147,056.92 : 202,974.60 = 83,431.96 : x - Step 2: Convert to fraction form
147,056.92/202,974.60 = 83,431.96/x - Step 3: Cross multiply
147,056.92x = 202,974.60 × 83,431.96 - Step 4: Simplify right side
147,056.92x = 16,934,568,708.22 - Step 5: Solve for x
x = 16,934,568,708.22/147,056.92 - Step 6: Final answer
x = 115,156.56
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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.