Finding the Fourth Proportional to 190,623.78, 263,092.23 and 105,768.18
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Solution
The fourth proportional to 190,623.78, 263,092.23 and 105,768.18 is: 145,977.52
Step by Step Solution
- Step 1: Write the proportion equation
190,623.78 : 263,092.23 = 105,768.18 : x - Step 2: Convert to fraction form
190,623.78/263,092.23 = 105,768.18/x - Step 3: Cross multiply
190,623.78x = 263,092.23 × 105,768.18 - Step 4: Simplify right side
190,623.78x = 27,826,786,339.24 - Step 5: Solve for x
x = 27,826,786,339.24/190,623.78 - Step 6: Final answer
x = 145,977.52
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1.5x scale
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.