Finding the Fourth Proportional to 136,292.34, 204,471.30 and 57,429.12
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Solution
The fourth proportional to 136,292.34, 204,471.30 and 57,429.12 is: 86,157.50
Step by Step Solution
- Step 1: Write the proportion equation
136,292.34 : 204,471.30 = 57,429.12 : x - Step 2: Convert to fraction form
136,292.34/204,471.30 = 57,429.12/x - Step 3: Cross multiply
136,292.34x = 204,471.30 × 57,429.12 - Step 4: Simplify right side
136,292.34x = 11,742,606,824.26 - Step 5: Solve for x
x = 11,742,606,824.26/136,292.34 - Step 6: Final answer
x = 86,157.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.