Finding the Fourth Proportional to 121,747.18, 168,010.74 and 68,032.26
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Solution
The fourth proportional to 121,747.18, 168,010.74 and 68,032.26 is: 93,884.31
Step by Step Solution
- Step 1: Write the proportion equation
121,747.18 : 168,010.74 = 68,032.26 : x - Step 2: Convert to fraction form
121,747.18/168,010.74 = 68,032.26/x - Step 3: Cross multiply
121,747.18x = 168,010.74 × 68,032.26 - Step 4: Simplify right side
121,747.18x = 11,430,150,346.47 - Step 5: Solve for x
x = 11,430,150,346.47/121,747.18 - Step 6: Final answer
x = 93,884.31
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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.