Finding the Fourth Proportional to 106,812.10, 160,218.15 and 102,729.70
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Solution
The fourth proportional to 106,812.10, 160,218.15 and 102,729.70 is: 154,094.55
Step by Step Solution
- Step 1: Write the proportion equation
106,812.10 : 160,218.15 = 102,729.70 : x - Step 2: Convert to fraction form
106,812.10/160,218.15 = 102,729.70/x - Step 3: Cross multiply
106,812.10x = 160,218.15 × 102,729.70 - Step 4: Simplify right side
106,812.10x = 16,459,162,484.06 - Step 5: Solve for x
x = 16,459,162,484.06/106,812.10 - Step 6: Final answer
x = 154,094.55
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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.