Finding the Fourth Proportional to 136,033.28, 187,723.36 and 75,603.20
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Solution
The fourth proportional to 136,033.28, 187,723.36 and 75,603.20 is: 104,330.99
Step by Step Solution
- Step 1: Write the proportion equation
136,033.28 : 187,723.36 = 75,603.20 : x - Step 2: Convert to fraction form
136,033.28/187,723.36 = 75,603.20/x - Step 3: Cross multiply
136,033.28x = 187,723.36 × 75,603.20 - Step 4: Simplify right side
136,033.28x = 14,192,486,730.75 - Step 5: Solve for x
x = 14,192,486,730.75/136,033.28 - Step 6: Final answer
x = 104,330.99
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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.