Finding the Fourth Proportional to 121,982.06, 168,336.10 and 68,272.07
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Solution
The fourth proportional to 121,982.06, 168,336.10 and 68,272.07 is: 94,215.94
Step by Step Solution
- Step 1: Write the proportion equation
121,982.06 : 168,336.10 = 68,272.07 : x - Step 2: Convert to fraction form
121,982.06/168,336.10 = 68,272.07/x - Step 3: Cross multiply
121,982.06x = 168,336.10 × 68,272.07 - Step 4: Simplify right side
121,982.06x = 11,492,654,002.73 - Step 5: Solve for x
x = 11,492,654,002.73/121,982.06 - Step 6: Final answer
x = 94,215.94
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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.