Finding the Fourth Proportional to 139,170.24, 208,866.06 and 50,449.05
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Solution
The fourth proportional to 139,170.24, 208,866.06 and 50,449.05 is: 75,713.70
Step by Step Solution
- Step 1: Write the proportion equation
139,170.24 : 208,866.06 = 50,449.05 : x - Step 2: Convert to fraction form
139,170.24/208,866.06 = 50,449.05/x - Step 3: Cross multiply
139,170.24x = 208,866.06 × 50,449.05 - Step 4: Simplify right side
139,170.24x = 10,537,094,304.24 - Step 5: Solve for x
x = 10,537,094,304.24/139,170.24 - Step 6: Final answer
x = 75,713.70
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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.