Finding the Fourth Proportional to 131,703.84, 181,751.29 and 71,274.49
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Solution
The fourth proportional to 131,703.84, 181,751.29 and 71,274.49 is: 98,358.79
Step by Step Solution
- Step 1: Write the proportion equation
131,703.84 : 181,751.29 = 71,274.49 : x - Step 2: Convert to fraction form
131,703.84/181,751.29 = 71,274.49/x - Step 3: Cross multiply
131,703.84x = 181,751.29 × 71,274.49 - Step 4: Simplify right side
131,703.84x = 12,954,230,501.59 - Step 5: Solve for x
x = 12,954,230,501.59/131,703.84 - Step 6: Final answer
x = 98,358.79
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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.