Finding the Fourth Proportional to 157,363.93, 217,156.12 and 85,744.49
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Solution
The fourth proportional to 157,363.93, 217,156.12 and 85,744.49 is: 118,324.07
Step by Step Solution
- Step 1: Write the proportion equation
157,363.93 : 217,156.12 = 85,744.49 : x - Step 2: Convert to fraction form
157,363.93/217,156.12 = 85,744.49/x - Step 3: Cross multiply
157,363.93x = 217,156.12 × 85,744.49 - Step 4: Simplify right side
157,363.93x = 18,619,940,759.78 - Step 5: Solve for x
x = 18,619,940,759.78/157,363.93 - Step 6: Final answer
x = 118,324.07
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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.