Finding the Fourth Proportional to 121,563.99, 167,767.81 and 67,857.08
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Solution
The fourth proportional to 121,563.99, 167,767.81 and 67,857.08 is: 93,648.07
Step by Step Solution
- Step 1: Write the proportion equation
121,563.99 : 167,767.81 = 67,857.08 : x - Step 2: Convert to fraction form
121,563.99/167,767.81 = 67,857.08/x - Step 3: Cross multiply
121,563.99x = 167,767.81 × 67,857.08 - Step 4: Simplify right side
121,563.99x = 11,384,232,696.11 - Step 5: Solve for x
x = 11,384,232,696.11/121,563.99 - Step 6: Final answer
x = 93,648.07
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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.