Finding the Fourth Proportional to 157,902.24, 217,920.33 and 86,293.11
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Solution
The fourth proportional to 157,902.24, 217,920.33 and 86,293.11 is: 119,092.82
Step by Step Solution
- Step 1: Write the proportion equation
157,902.24 : 217,920.33 = 86,293.11 : x - Step 2: Convert to fraction form
157,902.24/217,920.33 = 86,293.11/x - Step 3: Cross multiply
157,902.24x = 217,920.33 × 86,293.11 - Step 4: Simplify right side
157,902.24x = 18,805,023,007.93 - Step 5: Solve for x
x = 18,805,023,007.93/157,902.24 - Step 6: Final answer
x = 119,092.82
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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.