Finding the Fourth Proportional to 135,299.19, 186,732.69 and 77,927.49
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Solution
The fourth proportional to 135,299.19, 186,732.69 and 77,927.49 is: 107,551.34
Step by Step Solution
- Step 1: Write the proportion equation
135,299.19 : 186,732.69 = 77,927.49 : x - Step 2: Convert to fraction form
135,299.19/186,732.69 = 77,927.49/x - Step 3: Cross multiply
135,299.19x = 186,732.69 × 77,927.49 - Step 4: Simplify right side
135,299.19x = 14,551,609,832.65 - Step 5: Solve for x
x = 14,551,609,832.65/135,299.19 - Step 6: Final answer
x = 107,551.34
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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.