Finding the Fourth Proportional to 102,213.97, 141,045.51 and 75,370.98
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Solution
The fourth proportional to 102,213.97, 141,045.51 and 75,370.98 is: 104,004.75
Step by Step Solution
- Step 1: Write the proportion equation
102,213.97 : 141,045.51 = 75,370.98 : x - Step 2: Convert to fraction form
102,213.97/141,045.51 = 75,370.98/x - Step 3: Cross multiply
102,213.97x = 141,045.51 × 75,370.98 - Step 4: Simplify right side
102,213.97x = 10,630,738,313.30 - Step 5: Solve for x
x = 10,630,738,313.30/102,213.97 - Step 6: Final answer
x = 104,004.75
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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.