Finding the Fourth Proportional to 121,572.09, 167,769.63 and 67,857.08
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Solution
The fourth proportional to 121,572.09, 167,769.63 and 67,857.08 is: 93,642.84
Step by Step Solution
- Step 1: Write the proportion equation
121,572.09 : 167,769.63 = 67,857.08 : x - Step 2: Convert to fraction form
121,572.09/167,769.63 = 67,857.08/x - Step 3: Cross multiply
121,572.09x = 167,769.63 × 67,857.08 - Step 4: Simplify right side
121,572.09x = 11,384,356,365.63 - Step 5: Solve for x
x = 11,384,356,365.63/121,572.09 - Step 6: Final answer
x = 93,642.84
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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.