Finding the Fourth Proportional to 138,420.75, 207,469.16 and 63,548.13
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Solution
The fourth proportional to 138,420.75, 207,469.16 and 63,548.13 is: 95,247.84
Step by Step Solution
- Step 1: Write the proportion equation
138,420.75 : 207,469.16 = 63,548.13 : x - Step 2: Convert to fraction form
138,420.75/207,469.16 = 63,548.13/x - Step 3: Cross multiply
138,420.75x = 207,469.16 × 63,548.13 - Step 4: Simplify right side
138,420.75x = 13,184,277,150.67 - Step 5: Solve for x
x = 13,184,277,150.67/138,420.75 - Step 6: Final answer
x = 95,247.84
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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.