Finding the Fourth Proportional to 157,650.99, 217,562.97 and 86,035.60
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Solution
The fourth proportional to 157,650.99, 217,562.97 and 86,035.60 is: 118,731.64
Step by Step Solution
- Step 1: Write the proportion equation
157,650.99 : 217,562.97 = 86,035.60 : x - Step 2: Convert to fraction form
157,650.99/217,562.97 = 86,035.60/x - Step 3: Cross multiply
157,650.99x = 217,562.97 × 86,035.60 - Step 4: Simplify right side
157,650.99x = 18,718,160,661.73 - Step 5: Solve for x
x = 18,718,160,661.73/157,650.99 - Step 6: Final answer
x = 118,731.64
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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.