Finding the Fourth Proportional to 126,363.62, 189,381.36 and 51,396.50
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Solution
The fourth proportional to 126,363.62, 189,381.36 and 51,396.50 is: 77,028.02
Step by Step Solution
- Step 1: Write the proportion equation
126,363.62 : 189,381.36 = 51,396.50 : x - Step 2: Convert to fraction form
126,363.62/189,381.36 = 51,396.50/x - Step 3: Cross multiply
126,363.62x = 189,381.36 × 51,396.50 - Step 4: Simplify right side
126,363.62x = 9,733,539,069.24 - Step 5: Solve for x
x = 9,733,539,069.24/126,363.62 - Step 6: Final answer
x = 77,028.02
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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.