Finding the Fourth Proportional to 121,723.10, 167,961.18 and 68,001.44
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Solution
The fourth proportional to 121,723.10, 167,961.18 and 68,001.44 is: 93,832.66
Step by Step Solution
- Step 1: Write the proportion equation
121,723.10 : 167,961.18 = 68,001.44 : x - Step 2: Convert to fraction form
121,723.10/167,961.18 = 68,001.44/x - Step 3: Cross multiply
121,723.10x = 167,961.18 × 68,001.44 - Step 4: Simplify right side
121,723.10x = 11,421,602,104.10 - Step 5: Solve for x
x = 11,421,602,104.10/121,723.10 - Step 6: Final answer
x = 93,832.66
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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.