Finding the Fourth Proportional to 112,680.14, 155,497.26 and 61,692.26
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Solution
The fourth proportional to 112,680.14, 155,497.26 and 61,692.26 is: 85,134.59
Step by Step Solution
- Step 1: Write the proportion equation
112,680.14 : 155,497.26 = 61,692.26 : x - Step 2: Convert to fraction form
112,680.14/155,497.26 = 61,692.26/x - Step 3: Cross multiply
112,680.14x = 155,497.26 × 61,692.26 - Step 4: Simplify right side
112,680.14x = 9,592,977,393.21 - Step 5: Solve for x
x = 9,592,977,393.21/112,680.14 - Step 6: Final answer
x = 85,134.59
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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.