Finding the Fourth Proportional to 140,142.50, 193,346.07 and 107,886.99
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Solution
The fourth proportional to 140,142.50, 193,346.07 and 107,886.99 is: 148,845.11
Step by Step Solution
- Step 1: Write the proportion equation
140,142.50 : 193,346.07 = 107,886.99 : x - Step 2: Convert to fraction form
140,142.50/193,346.07 = 107,886.99/x - Step 3: Cross multiply
140,142.50x = 193,346.07 × 107,886.99 - Step 4: Simplify right side
140,142.50x = 20,859,525,520.63 - Step 5: Solve for x
x = 20,859,525,520.63/140,142.50 - Step 6: Final answer
x = 148,845.11
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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.