Finding the Fourth Proportional to 135,805.82, 187,410.62 and 75,376.99
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Solution
The fourth proportional to 135,805.82, 187,410.62 and 75,376.99 is: 104,019.46
Step by Step Solution
- Step 1: Write the proportion equation
135,805.82 : 187,410.62 = 75,376.99 : x - Step 2: Convert to fraction form
135,805.82/187,410.62 = 75,376.99/x - Step 3: Cross multiply
135,805.82x = 187,410.62 × 75,376.99 - Step 4: Simplify right side
135,805.82x = 14,126,448,429.63 - Step 5: Solve for x
x = 14,126,448,429.63/135,805.82 - Step 6: Final answer
x = 104,019.46
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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.