Finding the Fourth Proportional to 120,423.13, 166,181.69 and 66,706.97
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Solution
The fourth proportional to 120,423.13, 166,181.69 and 66,706.97 is: 92,054.38
Step by Step Solution
- Step 1: Write the proportion equation
120,423.13 : 166,181.69 = 66,706.97 : x - Step 2: Convert to fraction form
120,423.13/166,181.69 = 66,706.97/x - Step 3: Cross multiply
120,423.13x = 166,181.69 × 66,706.97 - Step 4: Simplify right side
120,423.13x = 11,085,476,345.24 - Step 5: Solve for x
x = 11,085,476,345.24/120,423.13 - Step 6: Final answer
x = 92,054.38
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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.