Finding the Fourth Proportional to 106,694.76, 160,076.32 and 74,707.15
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Solution
The fourth proportional to 106,694.76, 160,076.32 and 74,707.15 is: 112,084.66
Step by Step Solution
- Step 1: Write the proportion equation
106,694.76 : 160,076.32 = 74,707.15 : x - Step 2: Convert to fraction form
106,694.76/160,076.32 = 74,707.15/x - Step 3: Cross multiply
106,694.76x = 160,076.32 × 74,707.15 - Step 4: Simplify right side
106,694.76x = 11,958,845,649.69 - Step 5: Solve for x
x = 11,958,845,649.69/106,694.76 - Step 6: Final answer
x = 112,084.66
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1.5x scale
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.