Finding the Fourth Proportional to 135,858.54, 187,486.98 and 75,433.08
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Solution
The fourth proportional to 135,858.54, 187,486.98 and 75,433.08 is: 104,098.87
Step by Step Solution
- Step 1: Write the proportion equation
135,858.54 : 187,486.98 = 75,433.08 : x - Step 2: Convert to fraction form
135,858.54/187,486.98 = 75,433.08/x - Step 3: Cross multiply
135,858.54x = 187,486.98 × 75,433.08 - Step 4: Simplify right side
135,858.54x = 14,142,720,361.30 - Step 5: Solve for x
x = 14,142,720,361.30/135,858.54 - Step 6: Final answer
x = 104,098.87
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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.