Finding the Fourth Proportional to 121,982.80, 182,974.20 and 102,737.20
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Solution
The fourth proportional to 121,982.80, 182,974.20 and 102,737.20 is: 154,105.80
Step by Step Solution
- Step 1: Write the proportion equation
121,982.80 : 182,974.20 = 102,737.20 : x - Step 2: Convert to fraction form
121,982.80/182,974.20 = 102,737.20/x - Step 3: Cross multiply
121,982.80x = 182,974.20 × 102,737.20 - Step 4: Simplify right side
121,982.80x = 18,798,256,980.24 - Step 5: Solve for x
x = 18,798,256,980.24/121,982.80 - Step 6: Final answer
x = 154,105.80
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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.