Finding the Fourth Proportional to 121,649.76, 182,479.68 and 41,742.66
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Solution
The fourth proportional to 121,649.76, 182,479.68 and 41,742.66 is: 62,615.72
Step by Step Solution
- Step 1: Write the proportion equation
121,649.76 : 182,479.68 = 41,742.66 : x - Step 2: Convert to fraction form
121,649.76/182,479.68 = 41,742.66/x - Step 3: Cross multiply
121,649.76x = 182,479.68 × 41,742.66 - Step 4: Simplify right side
121,649.76x = 7,617,187,239.15 - Step 5: Solve for x
x = 7,617,187,239.15/121,649.76 - Step 6: Final answer
x = 62,615.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.