Finding the Fourth Proportional to 135,744.73, 187,354.99 and 78,393.39
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Solution
The fourth proportional to 135,744.73, 187,354.99 and 78,393.39 is: 108,198.62
Step by Step Solution
- Step 1: Write the proportion equation
135,744.73 : 187,354.99 = 78,393.39 : x - Step 2: Convert to fraction form
135,744.73/187,354.99 = 78,393.39/x - Step 3: Cross multiply
135,744.73x = 187,354.99 × 78,393.39 - Step 4: Simplify right side
135,744.73x = 14,687,392,603.53 - Step 5: Solve for x
x = 14,687,392,603.53/135,744.73 - Step 6: Final answer
x = 108,198.62
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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.