Finding the Fourth Proportional to 133,791.81, 184,631.18 and 77,201.97
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Solution
The fourth proportional to 133,791.81, 184,631.18 and 77,201.97 is: 106,537.84
Step by Step Solution
- Step 1: Write the proportion equation
133,791.81 : 184,631.18 = 77,201.97 : x - Step 2: Convert to fraction form
133,791.81/184,631.18 = 77,201.97/x - Step 3: Cross multiply
133,791.81x = 184,631.18 × 77,201.97 - Step 4: Simplify right side
133,791.81x = 14,253,890,433.41 - Step 5: Solve for x
x = 14,253,890,433.41/133,791.81 - Step 6: Final answer
x = 106,537.84
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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.