Finding the Fourth Proportional to 121,616.29, 167,817.75 and 70,619.08
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Solution
The fourth proportional to 121,616.29, 167,817.75 and 70,619.08 is: 97,446.94
Step by Step Solution
- Step 1: Write the proportion equation
121,616.29 : 167,817.75 = 70,619.08 : x - Step 2: Convert to fraction form
121,616.29/167,817.75 = 70,619.08/x - Step 3: Cross multiply
121,616.29x = 167,817.75 × 70,619.08 - Step 4: Simplify right side
121,616.29x = 11,851,135,112.67 - Step 5: Solve for x
x = 11,851,135,112.67/121,616.29 - Step 6: Final answer
x = 97,446.94
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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.