Finding the Fourth Proportional to 135,791.49, 187,414.67 and 75,381.48
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Solution
The fourth proportional to 135,791.49, 187,414.67 and 75,381.48 is: 104,038.88
Step by Step Solution
- Step 1: Write the proportion equation
135,791.49 : 187,414.67 = 75,381.48 : x - Step 2: Convert to fraction form
135,791.49/187,414.67 = 75,381.48/x - Step 3: Cross multiply
135,791.49x = 187,414.67 × 75,381.48 - Step 4: Simplify right side
135,791.49x = 14,127,594,821.40 - Step 5: Solve for x
x = 14,127,594,821.40/135,791.49 - Step 6: Final answer
x = 104,038.88
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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.