Finding the Fourth Proportional to 140,377.88, 193,734.97 and 79,968.08
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Solution
The fourth proportional to 140,377.88, 193,734.97 and 79,968.08 is: 110,363.64
Step by Step Solution
- Step 1: Write the proportion equation
140,377.88 : 193,734.97 = 79,968.08 : x - Step 2: Convert to fraction form
140,377.88/193,734.97 = 79,968.08/x - Step 3: Cross multiply
140,377.88x = 193,734.97 × 79,968.08 - Step 4: Simplify right side
140,377.88x = 15,492,613,864.17 - Step 5: Solve for x
x = 15,492,613,864.17/140,377.88 - Step 6: Final answer
x = 110,363.64
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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.