Finding the Fourth Proportional to 128,540.13, 192,559.10 and 88,552.05
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Solution
The fourth proportional to 128,540.13, 192,559.10 and 88,552.05 is: 132,655.09
Step by Step Solution
- Step 1: Write the proportion equation
128,540.13 : 192,559.10 = 88,552.05 : x - Step 2: Convert to fraction form
128,540.13/192,559.10 = 88,552.05/x - Step 3: Cross multiply
128,540.13x = 192,559.10 × 88,552.05 - Step 4: Simplify right side
128,540.13x = 17,051,502,608.39 - Step 5: Solve for x
x = 17,051,502,608.39/128,540.13 - Step 6: Final answer
x = 132,655.09
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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.