Finding the Fourth Proportional to 126,075.99, 188,916.75 and 107,278.74
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Solution
The fourth proportional to 126,075.99, 188,916.75 and 107,278.74 is: 160,750.28
Step by Step Solution
- Step 1: Write the proportion equation
126,075.99 : 188,916.75 = 107,278.74 : x - Step 2: Convert to fraction form
126,075.99/188,916.75 = 107,278.74/x - Step 3: Cross multiply
126,075.99x = 188,916.75 × 107,278.74 - Step 4: Simplify right side
126,075.99x = 20,266,750,904.90 - Step 5: Solve for x
x = 20,266,750,904.90/126,075.99 - Step 6: Final answer
x = 160,750.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.