Finding the Fourth Proportional to 187,102.80, 280,777.08 and 68,775.12
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Solution
The fourth proportional to 187,102.80, 280,777.08 and 68,775.12 is: 103,207.85
Step by Step Solution
- Step 1: Write the proportion equation
187,102.80 : 280,777.08 = 68,775.12 : x - Step 2: Convert to fraction form
187,102.80/280,777.08 = 68,775.12/x - Step 3: Cross multiply
187,102.80x = 280,777.08 × 68,775.12 - Step 4: Simplify right side
187,102.80x = 19,310,477,370.25 - Step 5: Solve for x
x = 19,310,477,370.25/187,102.80 - Step 6: Final answer
x = 103,207.85
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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.