Finding the Fourth Proportional to 127,833.12, 176,409.36 and 74,149.29
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Solution
The fourth proportional to 127,833.12, 176,409.36 and 74,149.29 is: 102,325.82
Step by Step Solution
- Step 1: Write the proportion equation
127,833.12 : 176,409.36 = 74,149.29 : x - Step 2: Convert to fraction form
127,833.12/176,409.36 = 74,149.29/x - Step 3: Cross multiply
127,833.12x = 176,409.36 × 74,149.29 - Step 4: Simplify right side
127,833.12x = 13,080,628,793.35 - Step 5: Solve for x
x = 13,080,628,793.35/127,833.12 - Step 6: Final answer
x = 102,325.82
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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.