Finding the Fourth Proportional to 100,735.56, 139,002.45 and 68,100.99
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Solution
The fourth proportional to 100,735.56, 139,002.45 and 68,100.99 is: 93,970.84
Step by Step Solution
- Step 1: Write the proportion equation
100,735.56 : 139,002.45 = 68,100.99 : x - Step 2: Convert to fraction form
100,735.56/139,002.45 = 68,100.99/x - Step 3: Cross multiply
100,735.56x = 139,002.45 × 68,100.99 - Step 4: Simplify right side
100,735.56x = 9,466,205,428.22 - Step 5: Solve for x
x = 9,466,205,428.22/100,735.56 - Step 6: Final answer
x = 93,970.84
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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.