Finding the Fourth Proportional to 157,586.97, 236,424.19 and 87,515.49
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Solution
The fourth proportional to 157,586.97, 236,424.19 and 87,515.49 is: 131,297.52
Step by Step Solution
- Step 1: Write the proportion equation
157,586.97 : 236,424.19 = 87,515.49 : x - Step 2: Convert to fraction form
157,586.97/236,424.19 = 87,515.49/x - Step 3: Cross multiply
157,586.97x = 236,424.19 × 87,515.49 - Step 4: Simplify right side
157,586.97x = 20,690,778,835.70 - Step 5: Solve for x
x = 20,690,778,835.70/157,586.97 - Step 6: Final answer
x = 131,297.52
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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.