Finding the Fourth Proportional to 121,173.54, 167,110.62 and 75,855.65
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Solution
The fourth proportional to 121,173.54, 167,110.62 and 75,855.65 is: 104,612.65
Step by Step Solution
- Step 1: Write the proportion equation
121,173.54 : 167,110.62 = 75,855.65 : x - Step 2: Convert to fraction form
121,173.54/167,110.62 = 75,855.65/x - Step 3: Cross multiply
121,173.54x = 167,110.62 × 75,855.65 - Step 4: Simplify right side
121,173.54x = 12,676,284,702.00 - Step 5: Solve for x
x = 12,676,284,702.00/121,173.54 - Step 6: Final answer
x = 104,612.65
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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.