Finding the Fourth Proportional to 135,901.09, 187,549.78 and 75,472.00
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Solution
The fourth proportional to 135,901.09, 187,549.78 and 75,472.00 is: 104,154.85
Step by Step Solution
- Step 1: Write the proportion equation
135,901.09 : 187,549.78 = 75,472.00 : x - Step 2: Convert to fraction form
135,901.09/187,549.78 = 75,472.00/x - Step 3: Cross multiply
135,901.09x = 187,549.78 × 75,472.00 - Step 4: Simplify right side
135,901.09x = 14,154,757,535.08 - Step 5: Solve for x
x = 14,154,757,535.08/135,901.09 - Step 6: Final answer
x = 104,154.85
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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.