Finding the Fourth Proportional to 159,174.30, 219,691.74 and 91,236.81
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Solution
The fourth proportional to 159,174.30, 219,691.74 and 91,236.81 is: 125,924.68
Step by Step Solution
- Step 1: Write the proportion equation
159,174.30 : 219,691.74 = 91,236.81 : x - Step 2: Convert to fraction form
159,174.30/219,691.74 = 91,236.81/x - Step 3: Cross multiply
159,174.30x = 219,691.74 × 91,236.81 - Step 4: Simplify right side
159,174.30x = 20,043,973,540.95 - Step 5: Solve for x
x = 20,043,973,540.95/159,174.30 - Step 6: Final answer
x = 125,924.68
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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.