Finding the Fourth Proportional to 135,164.01, 186,523.04 and 74,733.12
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Solution
The fourth proportional to 135,164.01, 186,523.04 and 74,733.12 is: 103,129.88
Step by Step Solution
- Step 1: Write the proportion equation
135,164.01 : 186,523.04 = 74,733.12 : x - Step 2: Convert to fraction form
135,164.01/186,523.04 = 74,733.12/x - Step 3: Cross multiply
135,164.01x = 186,523.04 × 74,733.12 - Step 4: Simplify right side
135,164.01x = 13,939,448,357.42 - Step 5: Solve for x
x = 13,939,448,357.42/135,164.01 - Step 6: Final answer
x = 103,129.88
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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.