Finding the Fourth Proportional to 165,037.49, 227,755.35 and 100,509.75
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Solution
The fourth proportional to 165,037.49, 227,755.35 and 100,509.75 is: 138,705.66
Step by Step Solution
- Step 1: Write the proportion equation
165,037.49 : 227,755.35 = 100,509.75 : x - Step 2: Convert to fraction form
165,037.49/227,755.35 = 100,509.75/x - Step 3: Cross multiply
165,037.49x = 227,755.35 × 100,509.75 - Step 4: Simplify right side
165,037.49x = 22,891,633,289.66 - Step 5: Solve for x
x = 22,891,633,289.66/165,037.49 - Step 6: Final answer
x = 138,705.66
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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.