Finding the Fourth Proportional to 131,905.50, 182,277.99 and 100,015.26
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Solution
The fourth proportional to 131,905.50, 182,277.99 and 100,015.26 is: 138,209.40
Step by Step Solution
- Step 1: Write the proportion equation
131,905.50 : 182,277.99 = 100,015.26 : x - Step 2: Convert to fraction form
131,905.50/182,277.99 = 100,015.26/x - Step 3: Cross multiply
131,905.50x = 182,277.99 × 100,015.26 - Step 4: Simplify right side
131,905.50x = 18,230,580,562.13 - Step 5: Solve for x
x = 18,230,580,562.13/131,905.50 - Step 6: Final answer
x = 138,209.40
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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.