Finding the Fourth Proportional to 135,604.50, 187,134.20 and 75,174.99
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Solution
The fourth proportional to 135,604.50, 187,134.20 and 75,174.99 is: 103,741.48
Step by Step Solution
- Step 1: Write the proportion equation
135,604.50 : 187,134.20 = 75,174.99 : x - Step 2: Convert to fraction form
135,604.50/187,134.20 = 75,174.99/x - Step 3: Cross multiply
135,604.50x = 187,134.20 × 75,174.99 - Step 4: Simplify right side
135,604.50x = 14,067,811,613.66 - Step 5: Solve for x
x = 14,067,811,613.66/135,604.50 - Step 6: Final answer
x = 103,741.48
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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.