Finding the Fourth Proportional to 117,170.10, 161,692.74 and 63,454.68
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Solution
The fourth proportional to 117,170.10, 161,692.74 and 63,454.68 is: 87,566.38
Step by Step Solution
- Step 1: Write the proportion equation
117,170.10 : 161,692.74 = 63,454.68 : x - Step 2: Convert to fraction form
117,170.10/161,692.74 = 63,454.68/x - Step 3: Cross multiply
117,170.10x = 161,692.74 × 63,454.68 - Step 4: Simplify right side
117,170.10x = 10,260,161,075.02 - Step 5: Solve for x
x = 10,260,161,075.02/117,170.10 - Step 6: Final answer
x = 87,566.38
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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.