Finding the Fourth Proportional to 134,942.40, 202,543.20 and 115,243.20
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Solution
The fourth proportional to 134,942.40, 202,543.20 and 115,243.20 is: 172,975.48
Step by Step Solution
- Step 1: Write the proportion equation
134,942.40 : 202,543.20 = 115,243.20 : x - Step 2: Convert to fraction form
134,942.40/202,543.20 = 115,243.20/x - Step 3: Cross multiply
134,942.40x = 202,543.20 × 115,243.20 - Step 4: Simplify right side
134,942.40x = 23,341,726,506.24 - Step 5: Solve for x
x = 23,341,726,506.24/134,942.40 - Step 6: Final answer
x = 172,975.48
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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.