Finding the Fourth Proportional to 121,498.26, 167,558.58 and 76,181.19
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Solution
The fourth proportional to 121,498.26, 167,558.58 and 76,181.19 is: 105,061.69
Step by Step Solution
- Step 1: Write the proportion equation
121,498.26 : 167,558.58 = 76,181.19 : x - Step 2: Convert to fraction form
121,498.26/167,558.58 = 76,181.19/x - Step 3: Cross multiply
121,498.26x = 167,558.58 × 76,181.19 - Step 4: Simplify right side
121,498.26x = 12,764,812,019.11 - Step 5: Solve for x
x = 12,764,812,019.11/121,498.26 - Step 6: Final answer
x = 105,061.69
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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.