Finding the Fourth Proportional to 121,601.80, 182,402.70 and 119,009.80
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Solution
The fourth proportional to 121,601.80, 182,402.70 and 119,009.80 is: 178,514.70
Step by Step Solution
- Step 1: Write the proportion equation
121,601.80 : 182,402.70 = 119,009.80 : x - Step 2: Convert to fraction form
121,601.80/182,402.70 = 119,009.80/x - Step 3: Cross multiply
121,601.80x = 182,402.70 × 119,009.80 - Step 4: Simplify right side
121,601.80x = 21,707,708,846.46 - Step 5: Solve for x
x = 21,707,708,846.46/121,601.80 - Step 6: Final answer
x = 178,514.70
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1.5x scale
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.