Finding the Fourth Proportional to 113,503.26, 156,639.34 and 63,202.26
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Solution
The fourth proportional to 113,503.26, 156,639.34 and 63,202.26 is: 87,221.81
Step by Step Solution
- Step 1: Write the proportion equation
113,503.26 : 156,639.34 = 63,202.26 : x - Step 2: Convert to fraction form
113,503.26/156,639.34 = 63,202.26/x - Step 3: Cross multiply
113,503.26x = 156,639.34 × 63,202.26 - Step 4: Simplify right side
113,503.26x = 9,899,960,292.91 - Step 5: Solve for x
x = 9,899,960,292.91/113,503.26 - Step 6: Final answer
x = 87,221.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.