Finding the Fourth Proportional to 135,660.41, 186,995.66 and 106,933.49
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Solution
The fourth proportional to 135,660.41, 186,995.66 and 106,933.49 is: 147,398.18
Step by Step Solution
- Step 1: Write the proportion equation
135,660.41 : 186,995.66 = 106,933.49 : x - Step 2: Convert to fraction form
135,660.41/186,995.66 = 106,933.49/x - Step 3: Cross multiply
135,660.41x = 186,995.66 × 106,933.49 - Step 4: Simplify right side
135,660.41x = 19,996,097,069.01 - Step 5: Solve for x
x = 19,996,097,069.01/135,660.41 - Step 6: Final answer
x = 147,398.18
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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.