Finding the Fourth Proportional to 134,906.12, 186,170.37 and 74,476.70
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Solution
The fourth proportional to 134,906.12, 186,170.37 and 74,476.70 is: 102,777.80
Step by Step Solution
- Step 1: Write the proportion equation
134,906.12 : 186,170.37 = 74,476.70 : x - Step 2: Convert to fraction form
134,906.12/186,170.37 = 74,476.70/x - Step 3: Cross multiply
134,906.12x = 186,170.37 × 74,476.70 - Step 4: Simplify right side
134,906.12x = 13,865,354,795.38 - Step 5: Solve for x
x = 13,865,354,795.38/134,906.12 - Step 6: Final answer
x = 102,777.80
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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.