Finding the Fourth Proportional to 126,849.95, 190,278.11 and 42,613.09
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Solution
The fourth proportional to 126,849.95, 190,278.11 and 42,613.09 is: 63,920.70
Step by Step Solution
- Step 1: Write the proportion equation
126,849.95 : 190,278.11 = 42,613.09 : x - Step 2: Convert to fraction form
126,849.95/190,278.11 = 42,613.09/x - Step 3: Cross multiply
126,849.95x = 190,278.11 × 42,613.09 - Step 4: Simplify right side
126,849.95x = 8,108,337,857.30 - Step 5: Solve for x
x = 8,108,337,857.30/126,849.95 - Step 6: Final answer
x = 63,920.70
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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.