Finding the Fourth Proportional to 129,325.38, 193,988.09 and 35,831.13
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Solution
The fourth proportional to 129,325.38, 193,988.09 and 35,831.13 is: 53,746.70
Step by Step Solution
- Step 1: Write the proportion equation
129,325.38 : 193,988.09 = 35,831.13 : x - Step 2: Convert to fraction form
129,325.38/193,988.09 = 35,831.13/x - Step 3: Cross multiply
129,325.38x = 193,988.09 × 35,831.13 - Step 4: Simplify right side
129,325.38x = 6,950,812,471.24 - Step 5: Solve for x
x = 6,950,812,471.24/129,325.38 - Step 6: Final answer
x = 53,746.70
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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.