Finding the Fourth Proportional to 141,540.69, 195,331.52 and 81,122.99
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Solution
The fourth proportional to 141,540.69, 195,331.52 and 81,122.99 is: 111,952.80
Step by Step Solution
- Step 1: Write the proportion equation
141,540.69 : 195,331.52 = 81,122.99 : x - Step 2: Convert to fraction form
141,540.69/195,331.52 = 81,122.99/x - Step 3: Cross multiply
141,540.69x = 195,331.52 × 81,122.99 - Step 4: Simplify right side
141,540.69x = 15,845,876,943.64 - Step 5: Solve for x
x = 15,845,876,943.64/141,540.69 - Step 6: Final answer
x = 111,952.80
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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.