Finding the Fourth Proportional to 146,986.31, 202,841.21 and 83,328.21
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Solution
The fourth proportional to 146,986.31, 202,841.21 and 83,328.21 is: 114,992.99
Step by Step Solution
- Step 1: Write the proportion equation
146,986.31 : 202,841.21 = 83,328.21 : x - Step 2: Convert to fraction form
146,986.31/202,841.21 = 83,328.21/x - Step 3: Cross multiply
146,986.31x = 202,841.21 × 83,328.21 - Step 4: Simplify right side
146,986.31x = 16,902,395,151.85 - Step 5: Solve for x
x = 16,902,395,151.85/146,986.31 - Step 6: Final answer
x = 114,992.99
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1.5x scale
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.