Finding the Fourth Proportional to 157,881.97, 217,874.57 and 86,260.45
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Solution
The fourth proportional to 157,881.97, 217,874.57 and 86,260.45 is: 119,038.02
Step by Step Solution
- Step 1: Write the proportion equation
157,881.97 : 217,874.57 = 86,260.45 : x - Step 2: Convert to fraction form
157,881.97/217,874.57 = 86,260.45/x - Step 3: Cross multiply
157,881.97x = 217,874.57 × 86,260.45 - Step 4: Simplify right side
157,881.97x = 18,793,957,475.77 - Step 5: Solve for x
x = 18,793,957,475.77/157,881.97 - Step 6: Final answer
x = 119,038.02
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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.