Finding the Fourth Proportional to 103,824.94, 155,511.20 and 68,246.09
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Solution
The fourth proportional to 103,824.94, 155,511.20 and 68,246.09 is: 102,220.45
Step by Step Solution
- Step 1: Write the proportion equation
103,824.94 : 155,511.20 = 68,246.09 : x - Step 2: Convert to fraction form
103,824.94/155,511.20 = 68,246.09/x - Step 3: Cross multiply
103,824.94x = 155,511.20 × 68,246.09 - Step 4: Simplify right side
103,824.94x = 10,613,031,910.60 - Step 5: Solve for x
x = 10,613,031,910.60/103,824.94 - Step 6: Final answer
x = 102,220.45
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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.