Finding the Fourth Proportional to 121,492.97, 167,660.37 and 67,777.99
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Solution
The fourth proportional to 121,492.97, 167,660.37 and 67,777.99 is: 93,533.66
Step by Step Solution
- Step 1: Write the proportion equation
121,492.97 : 167,660.37 = 67,777.99 : x - Step 2: Convert to fraction form
121,492.97/167,660.37 = 67,777.99/x - Step 3: Cross multiply
121,492.97x = 167,660.37 × 67,777.99 - Step 4: Simplify right side
121,492.97x = 11,363,682,042.95 - Step 5: Solve for x
x = 11,363,682,042.95/121,492.97 - Step 6: Final answer
x = 93,533.66
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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.