Finding the Fourth Proportional to 157,385.09, 217,224.96 and 103,674.80
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Solution
The fourth proportional to 157,385.09, 217,224.96 and 103,674.80 is: 143,093.32
Step by Step Solution
- Step 1: Write the proportion equation
157,385.09 : 217,224.96 = 103,674.80 : x - Step 2: Convert to fraction form
157,385.09/217,224.96 = 103,674.80/x - Step 3: Cross multiply
157,385.09x = 217,224.96 × 103,674.80 - Step 4: Simplify right side
157,385.09x = 22,520,754,283.01 - Step 5: Solve for x
x = 22,520,754,283.01/157,385.09 - Step 6: Final answer
x = 143,093.32
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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.