Finding the Fourth Proportional to 149,122.20, 205,864.80 and 115,054.14
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Solution
The fourth proportional to 149,122.20, 205,864.80 and 115,054.14 is: 158,833.48
Step by Step Solution
- Step 1: Write the proportion equation
149,122.20 : 205,864.80 = 115,054.14 : x - Step 2: Convert to fraction form
149,122.20/205,864.80 = 115,054.14/x - Step 3: Cross multiply
149,122.20x = 205,864.80 × 115,054.14 - Step 4: Simplify right side
149,122.20x = 23,685,597,520.27 - Step 5: Solve for x
x = 23,685,597,520.27/149,122.20 - Step 6: Final answer
x = 158,833.48
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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.