Finding the Fourth Proportional to 157,217.74, 235,687.26 and 112,732.54
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Solution
The fourth proportional to 157,217.74, 235,687.26 and 112,732.54 is: 168,998.89
Step by Step Solution
- Step 1: Write the proportion equation
157,217.74 : 235,687.26 = 112,732.54 : x - Step 2: Convert to fraction form
157,217.74/235,687.26 = 112,732.54/x - Step 3: Cross multiply
157,217.74x = 235,687.26 × 112,732.54 - Step 4: Simplify right side
157,217.74x = 26,569,623,465.44 - Step 5: Solve for x
x = 26,569,623,465.44/157,217.74 - Step 6: Final answer
x = 168,998.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.