Finding the Fourth Proportional to 122,212.06, 168,649.76 and 67,763.96
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Solution
The fourth proportional to 122,212.06, 168,649.76 and 67,763.96 is: 93,512.66
Step by Step Solution
- Step 1: Write the proportion equation
122,212.06 : 168,649.76 = 67,763.96 : x - Step 2: Convert to fraction form
122,212.06/168,649.76 = 67,763.96/x - Step 3: Cross multiply
122,212.06x = 168,649.76 × 67,763.96 - Step 4: Simplify right side
122,212.06x = 11,428,375,041.02 - Step 5: Solve for x
x = 11,428,375,041.02/122,212.06 - Step 6: Final answer
x = 93,512.66
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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.