Finding the Fourth Proportional to 120,824.91, 166,798.98 and 75,528.09
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Solution
The fourth proportional to 120,824.91, 166,798.98 and 75,528.09 is: 104,266.65
Step by Step Solution
- Step 1: Write the proportion equation
120,824.91 : 166,798.98 = 75,528.09 : x - Step 2: Convert to fraction form
120,824.91/166,798.98 = 75,528.09/x - Step 3: Cross multiply
120,824.91x = 166,798.98 × 75,528.09 - Step 4: Simplify right side
120,824.91x = 12,598,008,373.35 - Step 5: Solve for x
x = 12,598,008,373.35/120,824.91 - Step 6: Final answer
x = 104,266.65
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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.