Finding the Fourth Proportional to 135,304.88, 186,723.78 and 87,641.19
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Solution
The fourth proportional to 135,304.88, 186,723.78 and 87,641.19 is: 120,946.82
Step by Step Solution
- Step 1: Write the proportion equation
135,304.88 : 186,723.78 = 87,641.19 : x - Step 2: Convert to fraction form
135,304.88/186,723.78 = 87,641.19/x - Step 3: Cross multiply
135,304.88x = 186,723.78 × 87,641.19 - Step 4: Simplify right side
135,304.88x = 16,364,694,444.83 - Step 5: Solve for x
x = 16,364,694,444.83/135,304.88 - Step 6: Final answer
x = 120,946.82
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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.