Finding the Fourth Proportional to 128,469.24, 177,283.02 and 71,108.67
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Solution
The fourth proportional to 128,469.24, 177,283.02 and 71,108.67 is: 98,127.46
Step by Step Solution
- Step 1: Write the proportion equation
128,469.24 : 177,283.02 = 71,108.67 : x - Step 2: Convert to fraction form
128,469.24/177,283.02 = 71,108.67/x - Step 3: Cross multiply
128,469.24x = 177,283.02 × 71,108.67 - Step 4: Simplify right side
128,469.24x = 12,606,359,765.78 - Step 5: Solve for x
x = 12,606,359,765.78/128,469.24 - Step 6: Final answer
x = 98,127.46
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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.