Finding the Fourth Proportional to 102,632.91, 141,630.66 and 57,309.63
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Solution
The fourth proportional to 102,632.91, 141,630.66 and 57,309.63 is: 79,085.75
Step by Step Solution
- Step 1: Write the proportion equation
102,632.91 : 141,630.66 = 57,309.63 : x - Step 2: Convert to fraction form
102,632.91/141,630.66 = 57,309.63/x - Step 3: Cross multiply
102,632.91x = 141,630.66 × 57,309.63 - Step 4: Simplify right side
102,632.91x = 8,116,800,190.14 - Step 5: Solve for x
x = 8,116,800,190.14/102,632.91 - Step 6: Final answer
x = 79,085.75
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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.