Finding the Fourth Proportional to 127,135.51, 175,481.04 and 79,360.09
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Solution
The fourth proportional to 127,135.51, 175,481.04 and 79,360.09 is: 109,538.17
Step by Step Solution
- Step 1: Write the proportion equation
127,135.51 : 175,481.04 = 79,360.09 : x - Step 2: Convert to fraction form
127,135.51/175,481.04 = 79,360.09/x - Step 3: Cross multiply
127,135.51x = 175,481.04 × 79,360.09 - Step 4: Simplify right side
127,135.51x = 13,926,191,127.69 - Step 5: Solve for x
x = 13,926,191,127.69/127,135.51 - Step 6: Final answer
x = 109,538.17
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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.