Finding the Fourth Proportional to 120,316.92, 166,035.35 and 66,600.80
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Solution
The fourth proportional to 120,316.92, 166,035.35 and 66,600.80 is: 91,907.99
Step by Step Solution
- Step 1: Write the proportion equation
120,316.92 : 166,035.35 = 66,600.80 : x - Step 2: Convert to fraction form
120,316.92/166,035.35 = 66,600.80/x - Step 3: Cross multiply
120,316.92x = 166,035.35 × 66,600.80 - Step 4: Simplify right side
120,316.92x = 11,058,085,975.10 - Step 5: Solve for x
x = 11,058,085,975.10/120,316.92 - Step 6: Final answer
x = 91,907.99
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1.5x scale
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.