Finding the Fourth Proportional to 190,655.28, 263,135.76 and 105,799.68
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Solution
The fourth proportional to 190,655.28, 263,135.76 and 105,799.68 is: 146,021.02
Step by Step Solution
- Step 1: Write the proportion equation
190,655.28 : 263,135.76 = 105,799.68 : x - Step 2: Convert to fraction form
190,655.28/263,135.76 = 105,799.68/x - Step 3: Cross multiply
190,655.28x = 263,135.76 × 105,799.68 - Step 4: Simplify right side
190,655.28x = 27,839,679,204.56 - Step 5: Solve for x
x = 27,839,679,204.56/190,655.28 - Step 6: Final answer
x = 146,021.02
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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.