Finding the Fourth Proportional to 127,134.51, 175,479.66 and 79,359.09
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Solution
The fourth proportional to 127,134.51, 175,479.66 and 79,359.09 is: 109,536.79
Step by Step Solution
- Step 1: Write the proportion equation
127,134.51 : 175,479.66 = 79,359.09 : x - Step 2: Convert to fraction form
127,134.51/175,479.66 = 79,359.09/x - Step 3: Cross multiply
127,134.51x = 175,479.66 × 79,359.09 - Step 4: Simplify right side
127,134.51x = 13,925,906,131.11 - Step 5: Solve for x
x = 13,925,906,131.11/127,134.51 - Step 6: Final answer
x = 109,536.79
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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.