Finding the Fourth Proportional to 135,490.82, 202,412.08 and 87,716.71
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Solution
The fourth proportional to 135,490.82, 202,412.08 and 87,716.71 is: 131,041.50
Step by Step Solution
- Step 1: Write the proportion equation
135,490.82 : 202,412.08 = 87,716.71 : x - Step 2: Convert to fraction form
135,490.82/202,412.08 = 87,716.71/x - Step 3: Cross multiply
135,490.82x = 202,412.08 × 87,716.71 - Step 4: Simplify right side
135,490.82x = 17,754,920,271.21 - Step 5: Solve for x
x = 17,754,920,271.21/135,490.82 - Step 6: Final answer
x = 131,041.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.