Finding the Fourth Proportional to 120,986.07, 166,961.30 and 67,275.99
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Solution
The fourth proportional to 120,986.07, 166,961.30 and 67,275.99 is: 92,841.15
Step by Step Solution
- Step 1: Write the proportion equation
120,986.07 : 166,961.30 = 67,275.99 : x - Step 2: Convert to fraction form
120,986.07/166,961.30 = 67,275.99/x - Step 3: Cross multiply
120,986.07x = 166,961.30 × 67,275.99 - Step 4: Simplify right side
120,986.07x = 11,232,486,412.81 - Step 5: Solve for x
x = 11,232,486,412.81/120,986.07 - Step 6: Final answer
x = 92,841.15
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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.