Finding the Fourth Proportional to 126,347.18, 189,520.34 and 51,450.66
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Solution
The fourth proportional to 126,347.18, 189,520.34 and 51,450.66 is: 77,175.82
Step by Step Solution
- Step 1: Write the proportion equation
126,347.18 : 189,520.34 = 51,450.66 : x - Step 2: Convert to fraction form
126,347.18/189,520.34 = 51,450.66/x - Step 3: Cross multiply
126,347.18x = 189,520.34 × 51,450.66 - Step 4: Simplify right side
126,347.18x = 9,750,946,319.17 - Step 5: Solve for x
x = 9,750,946,319.17/126,347.18 - Step 6: Final answer
x = 77,175.82
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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.