Finding the Fourth Proportional to 145,975.96, 201,451.80 and 84,717.44
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Solution
The fourth proportional to 145,975.96, 201,451.80 and 84,717.44 is: 116,912.95
Step by Step Solution
- Step 1: Write the proportion equation
145,975.96 : 201,451.80 = 84,717.44 : x - Step 2: Convert to fraction form
145,975.96/201,451.80 = 84,717.44/x - Step 3: Cross multiply
145,975.96x = 201,451.80 × 84,717.44 - Step 4: Simplify right side
145,975.96x = 17,066,480,779.39 - Step 5: Solve for x
x = 17,066,480,779.39/145,975.96 - Step 6: Final answer
x = 116,912.95
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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.