Finding the Fourth Proportional to 157,678.66, 217,593.46 and 86,059.19
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Solution
The fourth proportional to 157,678.66, 217,593.46 and 86,059.19 is: 118,760.00
Step by Step Solution
- Step 1: Write the proportion equation
157,678.66 : 217,593.46 = 86,059.19 : x - Step 2: Convert to fraction form
157,678.66/217,593.46 = 86,059.19/x - Step 3: Cross multiply
157,678.66x = 217,593.46 × 86,059.19 - Step 4: Simplify right side
157,678.66x = 18,725,916,806.92 - Step 5: Solve for x
x = 18,725,916,806.92/157,678.66 - Step 6: Final answer
x = 118,760.00
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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.