Finding the Fourth Proportional to 121,497.24, 167,669.49 and 76,170.96
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Solution
The fourth proportional to 121,497.24, 167,669.49 and 76,170.96 is: 105,117.99
Step by Step Solution
- Step 1: Write the proportion equation
121,497.24 : 167,669.49 = 76,170.96 : x - Step 2: Convert to fraction form
121,497.24/167,669.49 = 76,170.96/x - Step 3: Cross multiply
121,497.24x = 167,669.49 × 76,170.96 - Step 4: Simplify right side
121,497.24x = 12,771,546,016.01 - Step 5: Solve for x
x = 12,771,546,016.01/121,497.24 - Step 6: Final answer
x = 105,117.99
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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.