Finding the Fourth Proportional to 138,250.70, 207,376.05 and 68,266.70
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Solution
The fourth proportional to 138,250.70, 207,376.05 and 68,266.70 is: 102,400.05
Step by Step Solution
- Step 1: Write the proportion equation
138,250.70 : 207,376.05 = 68,266.70 : x - Step 2: Convert to fraction form
138,250.70/207,376.05 = 68,266.70/x - Step 3: Cross multiply
138,250.70x = 207,376.05 × 68,266.70 - Step 4: Simplify right side
138,250.70x = 14,156,878,592.54 - Step 5: Solve for x
x = 14,156,878,592.54/138,250.70 - Step 6: Final answer
x = 102,400.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.