Finding the Fourth Proportional to 135,206.49, 202,723.88 and 71,987.61
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Solution
The fourth proportional to 135,206.49, 202,723.88 and 71,987.61 is: 107,935.70
Step by Step Solution
- Step 1: Write the proportion equation
135,206.49 : 202,723.88 = 71,987.61 : x - Step 2: Convert to fraction form
135,206.49/202,723.88 = 71,987.61/x - Step 3: Cross multiply
135,206.49x = 202,723.88 × 71,987.61 - Step 4: Simplify right side
135,206.49x = 14,593,607,251.19 - Step 5: Solve for x
x = 14,593,607,251.19/135,206.49 - Step 6: Final answer
x = 107,935.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.