Finding the Fourth Proportional to 135,662.99, 187,220.97 and 75,229.58
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Solution
The fourth proportional to 135,662.99, 187,220.97 and 75,229.58 is: 103,820.17
Step by Step Solution
- Step 1: Write the proportion equation
135,662.99 : 187,220.97 = 75,229.58 : x - Step 2: Convert to fraction form
135,662.99/187,220.97 = 75,229.58/x - Step 3: Cross multiply
135,662.99x = 187,220.97 × 75,229.58 - Step 4: Simplify right side
135,662.99x = 14,084,554,355.23 - Step 5: Solve for x
x = 14,084,554,355.23/135,662.99 - Step 6: Final answer
x = 103,820.17
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1.5x scale
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.