Finding the Fourth Proportional to 157,373.68, 217,168.87 and 89,390.44
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Solution
The fourth proportional to 157,373.68, 217,168.87 and 89,390.44 is: 123,354.94
Step by Step Solution
- Step 1: Write the proportion equation
157,373.68 : 217,168.87 = 89,390.44 : x - Step 2: Convert to fraction form
157,373.68/217,168.87 = 89,390.44/x - Step 3: Cross multiply
157,373.68x = 217,168.87 × 89,390.44 - Step 4: Simplify right side
157,373.68x = 19,412,820,843.60 - Step 5: Solve for x
x = 19,412,820,843.60/157,373.68 - Step 6: Final answer
x = 123,354.94
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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.