Finding the Fourth Proportional to 141,425.07, 195,167.34 and 77,766.99
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Solution
The fourth proportional to 141,425.07, 195,167.34 and 77,766.99 is: 107,318.85
Step by Step Solution
- Step 1: Write the proportion equation
141,425.07 : 195,167.34 = 77,766.99 : x - Step 2: Convert to fraction form
141,425.07/195,167.34 = 77,766.99/x - Step 3: Cross multiply
141,425.07x = 195,167.34 × 77,766.99 - Step 4: Simplify right side
141,425.07x = 15,177,576,578.11 - Step 5: Solve for x
x = 15,177,576,578.11/141,425.07 - Step 6: Final answer
x = 107,318.85
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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.