Finding the Fourth Proportional to 121,412.40, 182,118.60 and 108,727.80
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Solution
The fourth proportional to 121,412.40, 182,118.60 and 108,727.80 is: 163,091.70
Step by Step Solution
- Step 1: Write the proportion equation
121,412.40 : 182,118.60 = 108,727.80 : x - Step 2: Convert to fraction form
121,412.40/182,118.60 = 108,727.80/x - Step 3: Cross multiply
121,412.40x = 182,118.60 × 108,727.80 - Step 4: Simplify right side
121,412.40x = 19,801,354,717.08 - Step 5: Solve for x
x = 19,801,354,717.08/121,412.40 - Step 6: Final answer
x = 163,091.70
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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.