Finding the Fourth Proportional to 122,948.96, 169,672.39 and 68,504.70
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Solution
The fourth proportional to 122,948.96, 169,672.39 and 68,504.70 is: 94,538.07
Step by Step Solution
- Step 1: Write the proportion equation
122,948.96 : 169,672.39 = 68,504.70 : x - Step 2: Convert to fraction form
122,948.96/169,672.39 = 68,504.70/x - Step 3: Cross multiply
122,948.96x = 169,672.39 × 68,504.70 - Step 4: Simplify right side
122,948.96x = 11,623,356,640.24 - Step 5: Solve for x
x = 11,623,356,640.24/122,948.96 - Step 6: Final answer
x = 94,538.07
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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.