Finding the Fourth Proportional to 98,418.97, 135,748.19 and 65,696.88
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Solution
The fourth proportional to 98,418.97, 135,748.19 and 65,696.88 is: 90,614.98
Step by Step Solution
- Step 1: Write the proportion equation
98,418.97 : 135,748.19 = 65,696.88 : x - Step 2: Convert to fraction form
98,418.97/135,748.19 = 65,696.88/x - Step 3: Cross multiply
98,418.97x = 135,748.19 × 65,696.88 - Step 4: Simplify right side
98,418.97x = 8,918,232,712.89 - Step 5: Solve for x
x = 8,918,232,712.89/98,418.97 - Step 6: Final answer
x = 90,614.98
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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.