Finding the Fourth Proportional to 157,825.62, 217,797.91 and 86,205.62
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Solution
The fourth proportional to 157,825.62, 217,797.91 and 86,205.62 is: 118,962.96
Step by Step Solution
- Step 1: Write the proportion equation
157,825.62 : 217,797.91 = 86,205.62 : x - Step 2: Convert to fraction form
157,825.62/217,797.91 = 86,205.62/x - Step 3: Cross multiply
157,825.62x = 217,797.91 × 86,205.62 - Step 4: Simplify right side
157,825.62x = 18,775,402,346.24 - Step 5: Solve for x
x = 18,775,402,346.24/157,825.62 - Step 6: Final answer
x = 118,962.96
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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.