Finding the Fourth Proportional to 129,325.88, 193,988.84 and 35,831.63
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Solution
The fourth proportional to 129,325.88, 193,988.84 and 35,831.63 is: 53,747.44
Step by Step Solution
- Step 1: Write the proportion equation
129,325.88 : 193,988.84 = 35,831.63 : x - Step 2: Convert to fraction form
129,325.88/193,988.84 = 35,831.63/x - Step 3: Cross multiply
129,325.88x = 193,988.84 × 35,831.63 - Step 4: Simplify right side
129,325.88x = 6,950,935,189.91 - Step 5: Solve for x
x = 6,950,935,189.91/129,325.88 - Step 6: Final answer
x = 53,747.44
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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.