Finding the Fourth Proportional to 157,128.75, 235,694.34 and 44,808.87
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Solution
The fourth proportional to 157,128.75, 235,694.34 and 44,808.87 is: 67,213.65
Step by Step Solution
- Step 1: Write the proportion equation
157,128.75 : 235,694.34 = 44,808.87 : x - Step 2: Convert to fraction form
157,128.75/235,694.34 = 44,808.87/x - Step 3: Cross multiply
157,128.75x = 235,694.34 × 44,808.87 - Step 4: Simplify right side
157,128.75x = 10,561,197,040.80 - Step 5: Solve for x
x = 10,561,197,040.80/157,128.75 - Step 6: Final answer
x = 67,213.65
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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.