Finding the Fourth Proportional to 117,420.26, 162,038.50 and 63,704.88
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Solution
The fourth proportional to 117,420.26, 162,038.50 and 63,704.88 is: 87,911.95
Step by Step Solution
- Step 1: Write the proportion equation
117,420.26 : 162,038.50 = 63,704.88 : x - Step 2: Convert to fraction form
117,420.26/162,038.50 = 63,704.88/x - Step 3: Cross multiply
117,420.26x = 162,038.50 × 63,704.88 - Step 4: Simplify right side
117,420.26x = 10,322,644,170.14 - Step 5: Solve for x
x = 10,322,644,170.14/117,420.26 - Step 6: Final answer
x = 87,911.95
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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.