Finding the Fourth Proportional to 120,627.35, 166,485.67 and 66,929.66
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Solution
The fourth proportional to 120,627.35, 166,485.67 and 66,929.66 is: 92,373.99
Step by Step Solution
- Step 1: Write the proportion equation
120,627.35 : 166,485.67 = 66,929.66 : x - Step 2: Convert to fraction form
120,627.35/166,485.67 = 66,929.66/x - Step 3: Cross multiply
120,627.35x = 166,485.67 × 66,929.66 - Step 4: Simplify right side
120,627.35x = 11,142,829,287.97 - Step 5: Solve for x
x = 11,142,829,287.97/120,627.35 - Step 6: Final answer
x = 92,373.99
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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.