Finding the Fourth Proportional to 170,822.28, 235,716.84 and 99,188.31
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Solution
The fourth proportional to 170,822.28, 235,716.84 and 99,188.31 is: 136,869.47
Step by Step Solution
- Step 1: Write the proportion equation
170,822.28 : 235,716.84 = 99,188.31 : x - Step 2: Convert to fraction form
170,822.28/235,716.84 = 99,188.31/x - Step 3: Cross multiply
170,822.28x = 235,716.84 × 99,188.31 - Step 4: Simplify right side
170,822.28x = 23,380,354,998.14 - Step 5: Solve for x
x = 23,380,354,998.14/170,822.28 - Step 6: Final answer
x = 136,869.47
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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.