Finding the Fourth Proportional to 106,316.30, 159,474.45 and 73,138.70
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Solution
The fourth proportional to 106,316.30, 159,474.45 and 73,138.70 is: 109,708.05
Step by Step Solution
- Step 1: Write the proportion equation
106,316.30 : 159,474.45 = 73,138.70 : x - Step 2: Convert to fraction form
106,316.30/159,474.45 = 73,138.70/x - Step 3: Cross multiply
106,316.30x = 159,474.45 × 73,138.70 - Step 4: Simplify right side
106,316.30x = 11,663,753,956.22 - Step 5: Solve for x
x = 11,663,753,956.22/106,316.30 - Step 6: Final answer
x = 109,708.05
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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.