Finding the Fourth Proportional to 87,534.72, 131,302.08 and 69,922.08
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Solution
The fourth proportional to 87,534.72, 131,302.08 and 69,922.08 is: 104,883.12
Step by Step Solution
- Step 1: Write the proportion equation
87,534.72 : 131,302.08 = 69,922.08 : x - Step 2: Convert to fraction form
87,534.72/131,302.08 = 69,922.08/x - Step 3: Cross multiply
87,534.72x = 131,302.08 × 69,922.08 - Step 4: Simplify right side
87,534.72x = 9,180,914,541.93 - Step 5: Solve for x
x = 9,180,914,541.93/87,534.72 - Step 6: Final answer
x = 104,883.12
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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.