Finding the Fourth Proportional to 106,680.08, 147,212.70 and 66,392.84
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Solution
The fourth proportional to 106,680.08, 147,212.70 and 66,392.84 is: 91,618.50
Step by Step Solution
- Step 1: Write the proportion equation
106,680.08 : 147,212.70 = 66,392.84 : x - Step 2: Convert to fraction form
106,680.08/147,212.70 = 66,392.84/x - Step 3: Cross multiply
106,680.08x = 147,212.70 × 66,392.84 - Step 4: Simplify right side
106,680.08x = 9,773,869,237.07 - Step 5: Solve for x
x = 9,773,869,237.07/106,680.08 - Step 6: Final answer
x = 91,618.50
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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.