Finding the Fourth Proportional to 126,166.87, 189,242.88 and 47,274.49
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Solution
The fourth proportional to 126,166.87, 189,242.88 and 47,274.49 is: 70,908.95
Step by Step Solution
- Step 1: Write the proportion equation
126,166.87 : 189,242.88 = 47,274.49 : x - Step 2: Convert to fraction form
126,166.87/189,242.88 = 47,274.49/x - Step 3: Cross multiply
126,166.87x = 189,242.88 × 47,274.49 - Step 4: Simplify right side
126,166.87x = 8,946,360,638.13 - Step 5: Solve for x
x = 8,946,360,638.13/126,166.87 - Step 6: Final answer
x = 70,908.95
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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.