Finding the Fourth Proportional to 97,261.75, 134,170.19 and 79,132.73
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Solution
The fourth proportional to 97,261.75, 134,170.19 and 79,132.73 is: 109,161.66
Step by Step Solution
- Step 1: Write the proportion equation
97,261.75 : 134,170.19 = 79,132.73 : x - Step 2: Convert to fraction form
97,261.75/134,170.19 = 79,132.73/x - Step 3: Cross multiply
97,261.75x = 134,170.19 × 79,132.73 - Step 4: Simplify right side
97,261.75x = 10,617,253,404.26 - Step 5: Solve for x
x = 10,617,253,404.26/97,261.75 - Step 6: Final answer
x = 109,161.66
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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.