Finding the Fourth Proportional to 136,467.04, 204,661.68 and 86,471.68
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Solution
The fourth proportional to 136,467.04, 204,661.68 and 86,471.68 is: 129,682.88
Step by Step Solution
- Step 1: Write the proportion equation
136,467.04 : 204,661.68 = 86,471.68 : x - Step 2: Convert to fraction form
136,467.04/204,661.68 = 86,471.68/x - Step 3: Cross multiply
136,467.04x = 204,661.68 × 86,471.68 - Step 4: Simplify right side
136,467.04x = 17,697,439,301.22 - Step 5: Solve for x
x = 17,697,439,301.22/136,467.04 - Step 6: Final answer
x = 129,682.88
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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.