Finding the Fourth Proportional to 135,173.97, 186,532.07 and 74,739.87
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Solution
The fourth proportional to 135,173.97, 186,532.07 and 74,739.87 is: 103,136.59
Step by Step Solution
- Step 1: Write the proportion equation
135,173.97 : 186,532.07 = 74,739.87 : x - Step 2: Convert to fraction form
135,173.97/186,532.07 = 74,739.87/x - Step 3: Cross multiply
135,173.97x = 186,532.07 × 74,739.87 - Step 4: Simplify right side
135,173.97x = 13,941,382,288.93 - Step 5: Solve for x
x = 13,941,382,288.93/135,173.97 - Step 6: Final answer
x = 103,136.59
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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.