Finding the Fourth Proportional to 129,117.48, 193,703.63 and 40,377.68
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Solution
The fourth proportional to 129,117.48, 193,703.63 and 40,377.68 is: 60,575.09
Step by Step Solution
- Step 1: Write the proportion equation
129,117.48 : 193,703.63 = 40,377.68 : x - Step 2: Convert to fraction form
129,117.48/193,703.63 = 40,377.68/x - Step 3: Cross multiply
129,117.48x = 193,703.63 × 40,377.68 - Step 4: Simplify right side
129,117.48x = 7,821,303,186.98 - Step 5: Solve for x
x = 7,821,303,186.98/129,117.48 - Step 6: Final answer
x = 60,575.09
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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.