Finding the Fourth Proportional to 121,586.75, 182,380.94 and 38,480.75
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Solution
The fourth proportional to 121,586.75, 182,380.94 and 38,480.75 is: 57,721.38
Step by Step Solution
- Step 1: Write the proportion equation
121,586.75 : 182,380.94 = 38,480.75 : x - Step 2: Convert to fraction form
121,586.75/182,380.94 = 38,480.75/x - Step 3: Cross multiply
121,586.75x = 182,380.94 × 38,480.75 - Step 4: Simplify right side
121,586.75x = 7,018,155,356.91 - Step 5: Solve for x
x = 7,018,155,356.91/121,586.75 - Step 6: Final answer
x = 57,721.38
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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.