Finding the Fourth Proportional to 127,072.19, 175,365.14 and 76,075.09
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Solution
The fourth proportional to 127,072.19, 175,365.14 and 76,075.09 is: 104,986.92
Step by Step Solution
- Step 1: Write the proportion equation
127,072.19 : 175,365.14 = 76,075.09 : x - Step 2: Convert to fraction form
127,072.19/175,365.14 = 76,075.09/x - Step 3: Cross multiply
127,072.19x = 175,365.14 × 76,075.09 - Step 4: Simplify right side
127,072.19x = 13,340,917,989.57 - Step 5: Solve for x
x = 13,340,917,989.57/127,072.19 - Step 6: Final answer
x = 104,986.92
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1.5x scale
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.