Finding the Fourth Proportional to 159,173.58, 219,690.72 and 91,236.08
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Solution
The fourth proportional to 159,173.58, 219,690.72 and 91,236.08 is: 125,923.66
Step by Step Solution
- Step 1: Write the proportion equation
159,173.58 : 219,690.72 = 91,236.08 : x - Step 2: Convert to fraction form
159,173.58/219,690.72 = 91,236.08/x - Step 3: Cross multiply
159,173.58x = 219,690.72 × 91,236.08 - Step 4: Simplify right side
159,173.58x = 20,043,720,105.18 - Step 5: Solve for x
x = 20,043,720,105.18/159,173.58 - Step 6: Final answer
x = 125,923.66
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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.