Finding the Fourth Proportional to 128,716.24, 177,342.06 and 96,304.90
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Solution
The fourth proportional to 128,716.24, 177,342.06 and 96,304.90 is: 132,686.52
Step by Step Solution
- Step 1: Write the proportion equation
128,716.24 : 177,342.06 = 96,304.90 : x - Step 2: Convert to fraction form
128,716.24/177,342.06 = 96,304.90/x - Step 3: Cross multiply
128,716.24x = 177,342.06 × 96,304.90 - Step 4: Simplify right side
128,716.24x = 17,078,909,354.09 - Step 5: Solve for x
x = 17,078,909,354.09/128,716.24 - Step 6: Final answer
x = 132,686.52
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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.