Finding the Fourth Proportional to 122,195.49, 168,636.43 and 68,497.75
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Solution
The fourth proportional to 122,195.49, 168,636.43 and 68,497.75 is: 94,530.63
Step by Step Solution
- Step 1: Write the proportion equation
122,195.49 : 168,636.43 = 68,497.75 : x - Step 2: Convert to fraction form
122,195.49/168,636.43 = 68,497.75/x - Step 3: Cross multiply
122,195.49x = 168,636.43 × 68,497.75 - Step 4: Simplify right side
122,195.49x = 11,551,216,319.45 - Step 5: Solve for x
x = 11,551,216,319.45/122,195.49 - Step 6: Final answer
x = 94,530.63
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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.