Finding the Fourth Proportional to 113,721.19, 170,508.79 and 47,207.23
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Solution
The fourth proportional to 113,721.19, 170,508.79 and 47,207.23 is: 70,780.54
Step by Step Solution
- Step 1: Write the proportion equation
113,721.19 : 170,508.79 = 47,207.23 : x - Step 2: Convert to fraction form
113,721.19/170,508.79 = 47,207.23/x - Step 3: Cross multiply
113,721.19x = 170,508.79 × 47,207.23 - Step 4: Simplify right side
113,721.19x = 8,049,247,666.55 - Step 5: Solve for x
x = 8,049,247,666.55/113,721.19 - Step 6: Final answer
x = 70,780.54
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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.