Finding the Fourth Proportional to 125,396.84, 187,774.11 and 69,174.45
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Solution
The fourth proportional to 125,396.84, 187,774.11 and 69,174.45 is: 103,584.52
Step by Step Solution
- Step 1: Write the proportion equation
125,396.84 : 187,774.11 = 69,174.45 : x - Step 2: Convert to fraction form
125,396.84/187,774.11 = 69,174.45/x - Step 3: Cross multiply
125,396.84x = 187,774.11 × 69,174.45 - Step 4: Simplify right side
125,396.84x = 12,989,170,783.49 - Step 5: Solve for x
x = 12,989,170,783.49/125,396.84 - Step 6: Final answer
x = 103,584.52
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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.