Finding the Fourth Proportional to 135,786.02, 203,599.58 and 40,987.78
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Solution
The fourth proportional to 135,786.02, 203,599.58 and 40,987.78 is: 61,457.68
Step by Step Solution
- Step 1: Write the proportion equation
135,786.02 : 203,599.58 = 40,987.78 : x - Step 2: Convert to fraction form
135,786.02/203,599.58 = 40,987.78/x - Step 3: Cross multiply
135,786.02x = 203,599.58 × 40,987.78 - Step 4: Simplify right side
135,786.02x = 8,345,094,079.19 - Step 5: Solve for x
x = 8,345,094,079.19/135,786.02 - Step 6: Final answer
x = 61,457.68
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1.5x scale
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.