Finding the Fourth Proportional to 157,797.93, 217,751.58 and 86,163.42
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Solution
The fourth proportional to 157,797.93, 217,751.58 and 86,163.42 is: 118,900.30
Step by Step Solution
- Step 1: Write the proportion equation
157,797.93 : 217,751.58 = 86,163.42 : x - Step 2: Convert to fraction form
157,797.93/217,751.58 = 86,163.42/x - Step 3: Cross multiply
157,797.93x = 217,751.58 × 86,163.42 - Step 4: Simplify right side
157,797.93x = 18,762,220,843.20 - Step 5: Solve for x
x = 18,762,220,843.20/157,797.93 - Step 6: Final answer
x = 118,900.30
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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.