Finding the Fourth Proportional to 171,419.88, 236,480.88 and 111,009.99
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Solution
The fourth proportional to 171,419.88, 236,480.88 and 111,009.99 is: 153,142.92
Step by Step Solution
- Step 1: Write the proportion equation
171,419.88 : 236,480.88 = 111,009.99 : x - Step 2: Convert to fraction form
171,419.88/236,480.88 = 111,009.99/x - Step 3: Cross multiply
171,419.88x = 236,480.88 × 111,009.99 - Step 4: Simplify right side
171,419.88x = 26,251,740,123.99 - Step 5: Solve for x
x = 26,251,740,123.99/171,419.88 - Step 6: Final answer
x = 153,142.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.