Finding the Fourth Proportional to 121,998.44, 168,356.19 and 68,283.44
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Solution
The fourth proportional to 121,998.44, 168,356.19 and 68,283.44 is: 94,230.22
Step by Step Solution
- Step 1: Write the proportion equation
121,998.44 : 168,356.19 = 68,283.44 : x - Step 2: Convert to fraction form
121,998.44/168,356.19 = 68,283.44/x - Step 3: Cross multiply
121,998.44x = 168,356.19 × 68,283.44 - Step 4: Simplify right side
121,998.44x = 11,495,938,956.71 - Step 5: Solve for x
x = 11,495,938,956.71/121,998.44 - Step 6: Final answer
x = 94,230.22
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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.