Finding the Fourth Proportional to 135,936.46, 187,660.50 and 84,977.54
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Solution
The fourth proportional to 135,936.46, 187,660.50 and 84,977.54 is: 117,311.62
Step by Step Solution
- Step 1: Write the proportion equation
135,936.46 : 187,660.50 = 84,977.54 : x - Step 2: Convert to fraction form
135,936.46/187,660.50 = 84,977.54/x - Step 3: Cross multiply
135,936.46x = 187,660.50 × 84,977.54 - Step 4: Simplify right side
135,936.46x = 15,946,927,091.93 - Step 5: Solve for x
x = 15,946,927,091.93/135,936.46 - Step 6: Final answer
x = 117,311.62
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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.