Finding the Fourth Proportional to 106,990.20, 160,394.99 and 67,460.18
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Solution
The fourth proportional to 106,990.20, 160,394.99 and 67,460.18 is: 101,133.32
Step by Step Solution
- Step 1: Write the proportion equation
106,990.20 : 160,394.99 = 67,460.18 : x - Step 2: Convert to fraction form
106,990.20/160,394.99 = 67,460.18/x - Step 3: Cross multiply
106,990.20x = 160,394.99 × 67,460.18 - Step 4: Simplify right side
106,990.20x = 10,820,273,757.22 - Step 5: Solve for x
x = 10,820,273,757.22/106,990.20 - Step 6: Final answer
x = 101,133.32
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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.