Finding the Fourth Proportional to 121,151.54, 167,187.89 and 66,701.99
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Solution
The fourth proportional to 121,151.54, 167,187.89 and 66,701.99 is: 92,048.07
Step by Step Solution
- Step 1: Write the proportion equation
121,151.54 : 167,187.89 = 66,701.99 : x - Step 2: Convert to fraction form
121,151.54/167,187.89 = 66,701.99/x - Step 3: Cross multiply
121,151.54x = 167,187.89 × 66,701.99 - Step 4: Simplify right side
121,151.54x = 11,151,764,966.90 - Step 5: Solve for x
x = 11,151,764,966.90/121,151.54 - Step 6: Final answer
x = 92,048.07
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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.