Finding the Fourth Proportional to 126,911.14, 175,115.17 and 72,438.44
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Solution
The fourth proportional to 126,911.14, 175,115.17 and 72,438.44 is: 99,952.37
Step by Step Solution
- Step 1: Write the proportion equation
126,911.14 : 175,115.17 = 72,438.44 : x - Step 2: Convert to fraction form
126,911.14/175,115.17 = 72,438.44/x - Step 3: Cross multiply
126,911.14x = 175,115.17 × 72,438.44 - Step 4: Simplify right side
126,911.14x = 12,685,068,542.64 - Step 5: Solve for x
x = 12,685,068,542.64/126,911.14 - Step 6: Final answer
x = 99,952.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.