Finding the Fourth Proportional to 98,765.06, 136,296.16 and 91,230.62
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Solution
The fourth proportional to 98,765.06, 136,296.16 and 91,230.62 is: 125,898.60
Step by Step Solution
- Step 1: Write the proportion equation
98,765.06 : 136,296.16 = 91,230.62 : x - Step 2: Convert to fraction form
98,765.06/136,296.16 = 91,230.62/x - Step 3: Cross multiply
98,765.06x = 136,296.16 × 91,230.62 - Step 4: Simplify right side
98,765.06x = 12,434,383,180.42 - Step 5: Solve for x
x = 12,434,383,180.42/98,765.06 - Step 6: Final answer
x = 125,898.60
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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.