Finding the Fourth Proportional to 146,400.68, 202,037.79 and 80,990.42
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Solution
The fourth proportional to 146,400.68, 202,037.79 and 80,990.42 is: 111,769.46
Step by Step Solution
- Step 1: Write the proportion equation
146,400.68 : 202,037.79 = 80,990.42 : x - Step 2: Convert to fraction form
146,400.68/202,037.79 = 80,990.42/x - Step 3: Cross multiply
146,400.68x = 202,037.79 × 80,990.42 - Step 4: Simplify right side
146,400.68x = 16,363,125,613.84 - Step 5: Solve for x
x = 16,363,125,613.84/146,400.68 - Step 6: Final answer
x = 111,769.46
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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.