Finding the Fourth Proportional to 125,075.87, 172,604.99 and 67,715.80
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Solution
The fourth proportional to 125,075.87, 172,604.99 and 67,715.80 is: 93,447.96
Step by Step Solution
- Step 1: Write the proportion equation
125,075.87 : 172,604.99 = 67,715.80 : x - Step 2: Convert to fraction form
125,075.87/172,604.99 = 67,715.80/x - Step 3: Cross multiply
125,075.87x = 172,604.99 × 67,715.80 - Step 4: Simplify right side
125,075.87x = 11,688,084,981.84 - Step 5: Solve for x
x = 11,688,084,981.84/125,075.87 - Step 6: Final answer
x = 93,447.96
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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.