Finding the Fourth Proportional to 117,235.63, 161,784.62 and 63,520.63
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Solution
The fourth proportional to 117,235.63, 161,784.62 and 63,520.63 is: 87,658.17
Step by Step Solution
- Step 1: Write the proportion equation
117,235.63 : 161,784.62 = 63,520.63 : x - Step 2: Convert to fraction form
117,235.63/161,784.62 = 63,520.63/x - Step 3: Cross multiply
117,235.63x = 161,784.62 × 63,520.63 - Step 4: Simplify right side
117,235.63x = 10,276,660,779.22 - Step 5: Solve for x
x = 10,276,660,779.22/117,235.63 - Step 6: Final answer
x = 87,658.17
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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.