Finding the Fourth Proportional to 157,517.91, 217,374.76 and 85,896.09
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Solution
The fourth proportional to 157,517.91, 217,374.76 and 85,896.09 is: 118,536.63
Step by Step Solution
- Step 1: Write the proportion equation
157,517.91 : 217,374.76 = 85,896.09 : x - Step 2: Convert to fraction form
157,517.91/217,374.76 = 85,896.09/x - Step 3: Cross multiply
157,517.91x = 217,374.76 × 85,896.09 - Step 4: Simplify right side
157,517.91x = 18,671,640,861.81 - Step 5: Solve for x
x = 18,671,640,861.81/157,517.91 - Step 6: Final answer
x = 118,536.63
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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.