Finding the Fourth Proportional to 134,586.20, 202,316.70 and 115,340.60
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Solution
The fourth proportional to 134,586.20, 202,316.70 and 115,340.60 is: 173,385.75
Step by Step Solution
- Step 1: Write the proportion equation
134,586.20 : 202,316.70 = 115,340.60 : x - Step 2: Convert to fraction form
134,586.20/202,316.70 = 115,340.60/x - Step 3: Cross multiply
134,586.20x = 202,316.70 × 115,340.60 - Step 4: Simplify right side
134,586.20x = 23,335,329,568.02 - Step 5: Solve for x
x = 23,335,329,568.02/134,586.20 - Step 6: Final answer
x = 173,385.75
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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.