Finding the Fourth Proportional to 134,879.56, 186,132.78 and 74,450.19
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Solution
The fourth proportional to 134,879.56, 186,132.78 and 74,450.19 is: 102,740.70
Step by Step Solution
- Step 1: Write the proportion equation
134,879.56 : 186,132.78 = 74,450.19 : x - Step 2: Convert to fraction form
134,879.56/186,132.78 = 74,450.19/x - Step 3: Cross multiply
134,879.56x = 186,132.78 × 74,450.19 - Step 4: Simplify right side
134,879.56x = 13,857,620,836.23 - Step 5: Solve for x
x = 13,857,620,836.23/134,879.56 - Step 6: Final answer
x = 102,740.70
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1.5x scale
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.