Finding the Fourth Proportional to 121,612.27, 167,453.39 and 110,207.54
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Solution
The fourth proportional to 121,612.27, 167,453.39 and 110,207.54 is: 151,749.70
Step by Step Solution
- Step 1: Write the proportion equation
121,612.27 : 167,453.39 = 110,207.54 : x - Step 2: Convert to fraction form
121,612.27/167,453.39 = 110,207.54/x - Step 3: Cross multiply
121,612.27x = 167,453.39 × 110,207.54 - Step 4: Simplify right side
121,612.27x = 18,454,625,757.93 - Step 5: Solve for x
x = 18,454,625,757.93/121,612.27 - Step 6: Final answer
x = 151,749.70
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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.