Finding the Fourth Proportional to 98,133.99, 147,221.10 and 38,161.05
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Solution
The fourth proportional to 98,133.99, 147,221.10 and 38,161.05 is: 57,249.39
Step by Step Solution
- Step 1: Write the proportion equation
98,133.99 : 147,221.10 = 38,161.05 : x - Step 2: Convert to fraction form
98,133.99/147,221.10 = 38,161.05/x - Step 3: Cross multiply
98,133.99x = 147,221.10 × 38,161.05 - Step 4: Simplify right side
98,133.99x = 5,618,110,831.24 - Step 5: Solve for x
x = 5,618,110,831.24/98,133.99 - Step 6: Final answer
x = 57,249.39
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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.